1985 Ford Thunderbird Differentials

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    • (0 reviews)
      # 503449254
      Ford Thunderbird with Ford 7.5" Series Axle with 10 Bolt 1985, Rear Ring and Pinion Gear Set by Motive Gear®. Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers prefer ring and...
      Quiet operationComputer controlled heat treatment
      $227.48 - $232.42
    • (0 reviews)
      # mpn730872350
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Dura Grip Positraction by Yukon Gear & Axle®. The Yukon Dura Grip an example of the popular clutch plate limited slips that appeared as OE equipment. Steel clutch plates, half of...
      Provides aggressive yet smooth traction to give you the confidence and performance you needFully rebuildable 4 spring design with composite clutches
      $461.23
    • (0 reviews)
      # mpn730868154
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Standard Open Carrier Case by Yukon Gear & Axle®. Without Spider Gears. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $224.91
    • (0 reviews)
      # mpn730900767
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Master Overhaul Kit by Yukon Gear & Axle®. Yukon Master Overhaul kits give you all the high quality parts you need to start and finish every differential job. Yukon...
      Most complete kits on the marketComplete overhaul package to rebuild differential
      $163.38
    • (0 reviews)
      # 503294160
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear High Performance Ring and Pinion Gear Set by Yukon Gear & Axle®. Yukon Ring and Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of...
      Smooth finishEasy Set-Up
      $221.47 - $394.60
    • (0 reviews)
      # mpn2151979710
      Ford Thunderbird with Ford 7.5" Series Axle with 10 Bolt 1985, Rear Differential Carrier by Motive Gear®. Without Internal Kit. Carrier Type: Open. All Motive Gear products are engineered for their specific application and manufactured...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $87.53
    • (0 reviews)
      # mpn2151980122
      Ford Thunderbird with Ford 7.5" Series Axle with 10 Bolt 1985, Rear Performance Ring and Pinion Gear Set by Motive Gear®. Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle. Gear sets are made...
      Central contact patternCNC start to finish
      $203.94
    • (0 reviews)
      # mpn2232296069
      Ford Thunderbird with 1.30" Axle Shaft Diameter with 27 Spline with Toyota 7.5" Series Axle 1985, Detroit Truetrac® Rear Differential by Eaton®. The Detroit Truetrac is a helical-gear style performance differential that maximizes wheel...
      Helical-style pinion gearsLimited-slip operation
      $527.79
    • (0 reviews)
      # 503432135
      Ford Thunderbird with Ford 7.5" Series Axle with 10 Bolt 1985, Rear Street Gear Ring and Pinion Gear Set by Richmond®. Richmond Gear ring and pinions are perfect for any vehicle where performance and durability matters. Made from...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $212.41 - $214.67
    • (0 reviews)
      # mpn2530909935
      Ford Thunderbird with Open Differential with 28 Spline with Ford 7.5" Series Axle 1985, Lock Right Locker by Powertrax®. Powertrax Lock-Right performance lockers’ straight-line performance is equal to a solid spool axle, yet they...
      Brute Force Devices For Rugged ApplicationsReplacement Of Differential Case Not Required
      $405.19
    • (0 reviews)
      # 742217784
      Ford Thunderbird FI with 10 Bolt 1985, HP™ Rear Differential by Auburn Gear®. Type: Limited Slip. High Performance. Auburn Gear’s flagship limited-slip differential gives you smooth torque-sensing operation with the correct bias...
      Expertly crafted from superior materialsProvides exceptional reliability
      $416.16 - $434.52
    • (0 reviews)
      # 742458480
      Ford Thunderbird FI with 10 Bolt 1985, Pro™ Rear Differential by Auburn Gear®. Type: Limited Slip. Turns your torque up another notch, offering an even higher bias ratio and faster sensing reaction than HP for the very best in...
      Expertly crafted from superior materialsProvides exceptional reliability
      $474.91 - $506.74
    • (0 reviews)
      # mpn2500668291
      Ford Thunderbird FI with 28 Spline with Ford 8.8" Series Axle with 10 Bolt 1985, Road Race™ Rear Differential by Auburn Gear®. Type: Limited Slip. Auburn Gear, LLC. Has developed a performance limited-slip differential specifically...
      Expertly crafted from superior materialsProvides exceptional reliability
      $483.48
    • (0 reviews)
      # mpn730832249
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Bearing Installation Kit by Yukon Gear & Axle®. With Timken Bearings and Races. Dominate the track or hit the trails with confidence by fine tuning your vehicle for...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $141.30
    • (0 reviews)
      # mpn730836312
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Carrier Bearing Kit by Yukon Gear & Axle®. Includes: Carrier bearings, races and "super" carrier shim kit. Yukon Carrier installation kits are great, low cost kits for...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $64.70
    • (0 reviews)
      # mpn730842290
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Mini Installation Kit by Yukon Gear & Axle®. Yukon Mini installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $33.83
    • (0 reviews)
      # mpn730846560
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Pinion Installation Kit by Yukon Gear & Axle®. Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $108.97
    • (0 reviews)
      # mpn730915411
      Ford Thunderbird with Standard Open Differential with 28 Spline with Ford 7.5" Series Axle 1985, Rear Spider Gear Set by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $134.89
    • (0 reviews)
      # mpn2151979709
      Ford Thunderbird with 7.5" Series Axle 1985, Differential Gear Installation Kit by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of company...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $36.07
    • (0 reviews)
      # 503547592
      Ford Thunderbird with GM 7.5" Series Axle with 10 Bolt 1985, Rear Differential Bearing Kit by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $72.50 - $76.32
    • (0 reviews)
      # mpn1578521304
      Ford Thunderbird with 28 Spline with 7.5" Series Axle with 10 Bolt 1985, Rear Differential Carrier Gear Kit by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $120.22
    • (0 reviews)
      # 503471061
      Ford Thunderbird with GM 7.5" Series Axle with 10 Bolt 1985, Rear Differential Master Bearing Kit by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities....
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $80.43 - $90.29
    • (0 reviews)
      # 503422476
      Ford Thunderbird with GM 7.5" Series Axle with 10 Bolt 1985, Rear Differential Super Bearing Kit by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $106.76 - $118.62
    • (0 reviews)
      # mpn2741036519
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Differential Gear Installation Kit by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $30.28
    • (0 reviews)
      # mpn2500665827
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Spider Gear Kit by Auburn Gear®. Dominate the track or hit the trails with condidence by fine tuning your vehicle for neck-breaking speed and performance with this premium...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $77.85
    • (0 reviews)
      # 503553487
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Axle C-Clip by Yukon Gear & Axle®. Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $3.61 - $23.21
    • (0 reviews)
      # 503474383
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Bearing Race Driver by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $111.18 - $120.06
    • (0 reviews)
      # mpn730928711
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Bearing Race Punch by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $56.95
    • (0 reviews)
      # 503446001
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Carrier Bearing Puller by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance...
      Works with an impact gun to safely and easliy remove carrrier bearingsEnables you to keep your engine in the powerband for more giddy-up and high speed
      $435.16 - $519.86
    • (0 reviews)
      # mpn730915412
      Ford Thunderbird with Trac Loc Locker with Ford 7.5" Series Axle 1985, Rear Differential Clutch Set by Yukon Gear & Axle®. For Both Sides. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $171.24
    • (0 reviews)
      # mpn730924872
      Ford Thunderbird with Posi Differential with Ford 7.5" Series Axle 1985, Rear Differential Cross Pin Bolt by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $3.46
    • (0 reviews)
      # mpn730928720
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Cross Pin Bolt Extractor Kit by Yukon Gear & Axle®. Designed utilizing the latest technology, this product by Yukon Gear & Axle features premium quality and will...
      Easily removes a broken cross pin bolt from a carrier caseDesigned to deliver trouble-free, consistent performance
      $46.60
    • (0 reviews)
      # 503315243
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Cross Pin Shaft by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $28.08 - $42.21
    • (0 reviews)
      # mpn730925751
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Crush Sleeve by Yukon Gear & Axle®. Designed utilizing the latest technology, this product by Yukon Gear & Axle features premium quality and will perform better than...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $7.00
    • (0 reviews)
      # mpn730849221
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Crush Sleeve Eliminator Kit by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $49.59
    • (0 reviews)
      # mpn4475657331
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Installer Tool Package by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $1,385.12
    • (0 reviews)
      # mpn730928910
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Multi-Shim Driver by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with...
      Allows for easier carrier shim installation without damaging carrier shimsEnables you to keep your engine in the powerband for more giddy-up and high speed
      $101.68
    • (0 reviews)
      # mpn730927357
      Ford Thunderbird with Standard Open Differential / with Trac Loc Locker with Ford 7.5" Series Axle 1985, Rear Differential Pinion Gear Thrust Washer by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $5.43
    • (0 reviews)
      # mpn730903995
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Pinion Mighty Seal by Yukon Gear & Axle®. Yukon Mighty Seals use the latest designs and manufacturing technologies to produce a precision fit, a tight seal and long...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $8.63
    • (0 reviews)
      # mpn730926911
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Pinion Nut by Yukon Gear & Axle®. Yukon heavy duty pinion supports feature upgraded materials and a larger design than OEM to provide heavy duty strength in racing and...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $6.65
    • (0 reviews)
      # mpn730928712
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Seal Puller by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $35.78
    • (0 reviews)
      # mpn730927358
      Ford Thunderbird with Standard Open Differential with Ford 7.5" Series Axle 1985, Rear Differential Side Gear Thrust Washer by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $9.54
    • (0 reviews)
      # mpn730927248
      Ford Thunderbird with Trac Loc Locker with Ford 7.5" Series Axle 1985, Rear Differential Spring by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $34.65
    • (0 reviews)
      # mpn730924424
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Outer Differential Oil Slinger by Yukon Gear & Axle®. Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $3.54
    • (0 reviews)
      # mpn730849211
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Pinion Depth Shim Kit by Yukon Gear & Axle®. Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up....
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $14.39
    • (0 reviews)
      # mpn730924886
      Ford Thunderbird with Standard Open Differential / with Trac Loc Locker with Ford 7.5" Series Axle 1985, Rear Ring Gear Bolt by Yukon Gear & Axle®. Yukon Gear & Axle manufactures a full line of top quality small parts to complete any...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $1.58
    • (0 reviews)
      # mpn730928908
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Set-Up Carrier Bearing by Yukon Gear & Axle®. Without Races. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance...
      Easily slips on and off pinion journal to allow for easier pinion depth adjustmentEnables you to keep your engine in the powerband for more giddy-up and high speed
      $92.01
    • (0 reviews)
      # mpn730853388
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Super Carrier Shim Kit by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $24.44
    • (0 reviews)
      # mpn2151979692
      Ford Thunderbird with 7.5" Series Axle / with 7.75" Series Axle / with 7.625" Series Axle / with 8.2" Series Axle / with 8.5" Series Axle / with 8.6" Series Axle 1985, Differential Carrier Shim Kit by Motive Gear®. All Motive Gear...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $24.23
    • (0 reviews)
      # mpn2151980515
      Ford Thunderbird with 7.5" Series Axle with 10 Bolt 1985, Differential Crush Sleeve by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of company...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $2.42
    • (0 reviews)
      # mpn1578520850
      Ford Thunderbird with 7.5" Series Axle with 10 Bolt 1985, Differential Pinion Nut by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $4.53
    • (0 reviews)
      # mpn2765184330
      Ford Thunderbird with 7.5" Series Axle / with 8.8" Series Axle / with 9" Series Axle / with 9.75" Series Axle 1985, Differential Pinion Seal by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $3.94
    • (0 reviews)
      # mpn2151980622
      Ford Thunderbird with 7.5" Series Axle with 10 Bolt 1985, Differential Pinion Shaft by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $19.20
    • (0 reviews)
      # mpn2151979515
      Ford Thunderbird with Chrysler 8" Series Axle / with Chrysler 8.25" Series Axle / with Chrysler 8.375" Series Axle / with Dana 44 Series Axle / with Ford 7.5" Series Axle / with Ford 8.8" Series Axle / with GM 8" Series Axle / with GM...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $8.68
    • (0 reviews)
      # 503483139
      Ford Thunderbird 1985, Differential Ring Gear Bolt by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium differential component that...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $2.16 - $13.54
    • (0 reviews)
      # mpn1434128
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Pinion Solid Spacer by G2 Axle & Gear®. Designed utilizing the latest technology, this product by G2 Axle & Gear features premium quality and will perform better than advertised....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $21.99
    • (0 reviews)
      # mpn358498249
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Differential Bearing Kit by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $131.97
    • (0 reviews)
      # mpn358498216
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Differential Pinion Shaft by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $41.42
    • (0 reviews)
      # 742166757
      Ford Thunderbird FI with 10 Bolt 1985, Rear Differential Spring Retainer Service Kit by Auburn Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $104.28 - $107.22
    • (0 reviews)
      # 742402424
      Ford Thunderbird FI with Ford 8.8" Series Axle with 10 Bolt 1985, Rear Differential Wiring Harness Kit by Auburn Gear®. Dominate the track or hit the trails with condidence by fine tuning your vehicle for neck-breaking speed and...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $80.78 - $740.21





    1985 Ford Thunderbird Models
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