1985 Ford Thunderbird Differentials & Components

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    • (0 reviews)
      # 111381819
      Ford Thunderbird with 7.5" Ring Gear with Ford Series Axle 1985, Rear Ring and Pinion Gear Set by USA Standard Gear®. USA Standard ring and pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a...
      Direct-fit OE-quality replacement for your factory partHelps restore the proper functionality of your vehicle
      $189.55 - $227.97
    • (0 reviews)
      # 531051438
      Ford Thunderbird with 7.5" Ring Gear 1985, Rear Differential Ring and Pinion by Dorman®. The gears of Dorman’s Differential Ring and Pinion are engineered to effectively transfer torque from the driveshaft to the axles. It's robust...
      Replacement eliminates driveline grinding and whining soundsDirect replacement for a proper fit
      $119.47 - $180.95
    • (0 reviews)
      # mpn739976946
      Ford Thunderbird with 7.5" Ring Gear with Ford Series Axle 1985, Rear Master Overhaul Bearing Kit by USA Standard Gear®. USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and...
      Uses Koyo bearings and racesExpertly crafted from premium materials
      $132.91
    • (1 review)
      # mpn2020890
      Ford Thunderbird with 7.5" Ring Gear 1985, Rear Axle Differential Bearing and Seal Kit by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered roller...
      Designed to effectively reduce frictionUltimate load handling capability
      $84.13
    • (0 reviews)
      # mpn2412741
      Ford Thunderbird with 7.5" Ring Gear 1985, Rear Differential Bearing Kit by Dorman®. Dorman’s Differential Bearing Kit allows you to keep all the necessary components for installation of the Differential Ring and Pinion readily on...
      Replacement eliminates driveline grinding and whining soundsRobust steel construction ensures durability for years of service
      $109.95
    • (0 reviews)
      # mpn739976914
      Ford Thunderbird with 7.5" Ring Gear with Ford Series Axle with 28 Spline 1985, Rear Spider Gear Set by USA Standard Gear®. USA Standard gear sets are the right choice to add confidence to your install. USA Standard Gear offers a full...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $102.61
    • (0 reviews)
      # 202163789
      Ford Thunderbird with General Motors Series Axle 1985, Basic Series Differential Kit by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $15.44 - $16.84
    • (0 reviews)
      # 202163795
      Ford Thunderbird with General Motors Series Axle 1985, Complete Series™ Differential Kit by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $75.48 - $82.46
    • (0 reviews)
      # 202163810
      Ford Thunderbird with General Motors Series Axle 1985, Differential Installation Kit by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $34.26 - $39.82
    • (0 reviews)
      # 531054233
      Ford Thunderbird 1985, Rear Differential Bearing by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered roller bearings, and all feature premium...
      Designed to effectively reduce frictionUltimate load handling capability
      $7.11 - $10.54
    • (0 reviews)
      # 531128461
      Ford Thunderbird 1985, Rear Differential Pinion Seal by Timken®. Timken offers the right seal to keep your vehicle running optimally. Timken seals provide ultimate protection from contaminants and help retain lubricants and liquids,...
      Machined rubber sealing edge provides greater accuracy and consistency and a better sealing surfaceAn extra dust lip helps keep harmful contaminants out and protects against rust and corrosion
      $10.47
    • (0 reviews)
      # 531080946
      Ford Thunderbird 1985, Rear Differential Race by Timken®. Precision manufactured using premium materials and made by the company that is trusted by many carmakers, the Timken race is the right choice if you opt for a highly durable part...
      OE quality fit, performance, and reliabilityCost-effective friction management solution
      $4.21 - $5.55
    • (0 reviews)
      # mpn2371034
      Ford Thunderbird 1985, Differential Crush Sleeves by Dorman®. A necessary item to replace when servicing the differential, Dorman’s Differential Crush Sleeve is durably built to retain optimal pressure when the pinion gear nut is...
      Direct replacement for a proper fit every timeDesigned specifically for rear-wheel drive vehicles
      $3.04
    • (0 reviews)
      # mpn2377088
      Ford Thunderbird with 7.5" Ring Gear 1985, Rear Differential Pinion Shaft Lock Bolt by Dorman®. Engineered from high-quality metal, Dorman’s Differential Pinion Shaft Lock Bolt effectively retains the pinion shaft to the rear...
      Replacement restores drivabilityDirect replacement for a proper fit
      $1.74
    • (0 reviews)
      # mpn1074426
      Ford Thunderbird with 7.5" Ring Gear with Independent Rear Suspension with Ford Series Axle 1985, Rear Axle Differential Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $7.78
    • (0 reviews)
      # mpn1074425
      Ford Thunderbird with 7.5" Ring Gear with Independent Rear Suspension with Ford Transmission 1985, Rear Axle Differential Bearing Race by National®. This part is manufactured by one of the most trusted names in the automotive industry...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.16
    • (0 reviews)
      # 531090526
      Ford Thunderbird with 7.5" Ring Gear with Independent Rear Suspension with Ford Series Axle 1985, Rear Differential Pinion Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $8.07 - $10.74
    • (0 reviews)
      # 531093039
      Ford Thunderbird with 7.5" Ring Gear with Independent Rear Suspension with Ford Series Axle 1985, Rear Differential Pinion Race by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.34 - $5.68
    • (0 reviews)
      # mpn1179151
      Ford Thunderbird with 7.5" Ring Gear with Independent Rear Suspension with Ford Transmission 1985, Rear Outer Differential Pinion Repair Sleeve by National®. This part is manufactured by one of the most trusted names in the automotive...
      National Redi-Sleeves are precision stainless steel wear sleeves designed to quickly repair damaged, grooved or worn shaftsStrong, durable stainless steel construction provides a corrosion-free sealing surface that surpasses most original shaft specifications
      $19.44
    • (0 reviews)
      # mpn1307887
      Ford Thunderbird with 7.5" Ring Gear with Independent Rear Suspension with Ford Series Axle 1985, Rear Outer Differential Pinion Seal by National®. This product is made of high-quality materials to serve you for years to come. Designed...
      National oil seals are recognized worldwide for their quality and reliable performance for every type of repair.Design Type: Spring Loaded; Multi-Lip
      $9.47
    • (0 reviews)
      # mpn358588597
      Ford Thunderbird with 7.5" Ring Gear / with 8.8" Ring Gear with General Motors Series Axle 1985, Crush Sleeve by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $2.92
    • (0 reviews)
      # 202163834
      Ford Thunderbird with General Motors Series Axle 1985, Differential Bearing Kit by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $54.66 - $55.04
    • (0 reviews)
      # mpn358588627
      Ford Thunderbird with 7.5" Ring Gear with General Motors Series Axle 1985, Differential Bearing Spacer With Shim Pack by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $12.62
    • (0 reviews)
      # 202163804
      Ford Thunderbird with General Motors Series Axle 1985, Differential Carrier Bearing Set by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $23.34 - $26.54
    • (0 reviews)
      # 202163840
      Ford Thunderbird with 8.8" Ring Gear with General Motors Series Axle 1985, Differential Pinion Bearing by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $11.89 - $62.46
    • (0 reviews)
      # mpn358588467
      Ford Thunderbird with 7.5" Ring Gear / with 8.8" Ring Gear with General Motors Series Axle 1985, Differential Pinion Nut by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $3.45
    • (0 reviews)
      # mpn358588645
      Ford Thunderbird with 7.5" Ring Gear / with 8.8" Ring Gear with General Motors Series Axle 1985, Differential Pinion Seal by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $6.92
    • (0 reviews)
      # 202163816
      Ford Thunderbird with General Motors Series Axle 1985, Differrential Carrier Shim Set by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $13.75 - $23.83
    • (0 reviews)
      # mpn358588439
      Ford Thunderbird with 7.5" Ring Gear with General Motors Series Axle 1985, Pinion Shim Set by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $9.53
    • (0 reviews)
      # mpn358588463
      Ford Thunderbird with 7.5" Ring Gear / with 8.8" Ring Gear with General Motors Series Axle 1985, Ring Gear Bolt Set by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $7.56
    • (0 reviews)
      # mpn358588432
      Ford Thunderbird with 7.5" Ring Gear / with 8.8" Ring Gear with General Motors Series Axle 1985, Smart Sleeve Crush Sleeve by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $9.62
    • (0 reviews)
      # mpn4517170323
      Ford Thunderbird with Ford 7.5" Series Axle with 10 Bolt 1985, Rear Differential Carrier by Motive Gear®. Without Internal Kit. Location: Rear. All Motive Gear products are engineered for their specific application and manufactured in...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $87.53
    • (0 reviews)
      # mpn4517166286
      Ford Thunderbird with Ford 7.5" Series Axle with 10 Bolt 1985, Rear Performance Ring and Pinion Gear Set by Motive Gear®. Location: Rear. Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle....
      Central contact patternCNC start to finish
      $203.94
    • (0 reviews)
      # 503449254
      Ford Thunderbird with Ford 7.5" Series Axle with 10 Bolt 1985, Rear Ring and Pinion Gear Set by Motive Gear®. Location: Rear. Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers...
      Quiet operationComputer controlled heat treatment
      $227.48 - $232.42
    • (0 reviews)
      # mpn4517168048
      Ford Thunderbird with 27 Spline with Toyota 7.5" Series Axle with 1.30" Axle Shaft Diameter 1985, Detroit Truetrac™ Rear Differential by Eaton®. Location: Rear. The Detroit Truetrac is a helical-gear style performance differential...
      Helical-style pinion gearsLimited-slip operation
      $576.52
    • (0 reviews)
      # mpn4517167039
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Dura Grip Positraction by Yukon Gear & Axle®. Location: Rear. The Yukon Dura Grip an example of the popular clutch plate limited slips that appeared as OE equipment. Steel clutch...
      Provides aggressive yet smooth traction to give you the confidence and performance you needFully rebuildable 4 spring design with composite clutches
      $486.52
    • (0 reviews)
      # 503294160
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear High Performance Ring and Pinion Gear Set by Yukon Gear & Axle®. Location: Rear. Yukon Ring and Pinion sets give you the confidence of knowing you’re running gears designed for...
      Smooth finishEasy Set-Up
      $232.54 - $414.33
    • (0 reviews)
      # mpn4517167006
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Standard Open Carrier Case by Yukon Gear & Axle®. Without Spider Gears. Location: Rear. 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
      $327.02
    • (0 reviews)
      # 1028947064
      Ford Thunderbird FI with Ford 8.8" Series Axle with 10 Bolt 1985, ECTED Max™ Rear Limited Slip Differential by Auburn Gear®. With Selectable Full Locker. Location: Rear. The ECTED Max is a selectable traction device; an on/off switch...
      Gearing is made from aircraft quality, 9310 heat treated billet steel to make it tough, durable and reliableSwitch the locker on or off "on-the-fly," at moderate road speeds with all 4 wheels on the ground
      $740.21
    • (0 reviews)
      # 1029108622
      Ford Thunderbird FI with 10 Bolt 1985, HP™ Rear Limited Slip Differential by Auburn Gear®. Location: Rear. High Performance. Auburn Gear’s flagship limited-slip differential gives you smooth torque-sensing operation with the correct...
      Expertly crafted from superior materialsProvides exceptional reliability
      $416.16 - $434.52
    • (1 review)
      # 1029190544
      Ford Thunderbird FI with 10 Bolt 1985, Pro™ Rear Limited Slip Differential by Auburn Gear®. Location: Rear. Turns your torque up another notch, offering an even higher bias ratio and faster sensing reaction than HP for the very best...
      Expertly crafted from superior materialsProvides exceptional reliability
      $474.91 - $506.74
    • (0 reviews)
      # mpn4517168158
      Ford Thunderbird FI with 28 Spline with Ford 8.8" Series Axle with 10 Bolt 1985, Road Race™ Rear Limited Slip Differential by Auburn Gear®. Location: Rear. Auburn Gear, LLC. Has developed a performance limited-slip differential...
      Expertly crafted from superior materialsProvides exceptional reliability
      $483.48
    • (0 reviews)
      # mpn4517169589
      Ford Thunderbird with 28 Spline with Open Differential 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)
      # 503432135
      Ford Thunderbird with Ford 7.5" Series Axle with 10 Bolt 1985, Rear Street Gear Ring and Pinion Gear Set by Richmond®. Location: Rear. Richmond Gear ring and pinions are perfect for any vehicle where performance and durability matters....
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $212.41 - $214.67
    • (0 reviews)
      # mpn4517166257
      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
      $31.82
    • (0 reviews)
      # 503547592
      Ford Thunderbird with GM 7.5" Series Axle with 10 Bolt 1985, Rear Differential Bearing Kit by Motive Gear®. Location: Rear. All Motive Gear products are engineered for their specific application and manufactured in state of the art...
      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)
      # mpn4517166372
      Ford Thunderbird with 28 Spline with 7.5" Series Axle with 10 Bolt 1985, Rear Differential Carrier Gear Kit by Motive Gear®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for...
      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®. Location: Rear. All Motive Gear products are engineered for their specific application and manufactured in state of the...
      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®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed...
      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)
      # mpn4517170974
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Bearing Installation Kit by Yukon Gear & Axle®. With Timken Bearings and Races. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your...
      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
      $146.25
    • (0 reviews)
      # mpn4517167244
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Carrier Bearing Kit by Yukon Gear & Axle®. Location: Rear. Includes: Carrier bearings, races and "super" carrier shim kit. Yukon Carrier installation kits are great,...
      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
      $67.28
    • (0 reviews)
      # mpn4517167024
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Master Overhaul Kit by Yukon Gear & Axle®. Location: Rear. Yukon Master Overhaul kits give you all the high quality parts you need to start and finish every...
      Most complete kits on the marketComplete overhaul package to rebuild differential
      $168.28
    • (0 reviews)
      # mpn4517169311
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Mini Installation Kit by Yukon Gear & Axle®. Location: Rear. Yukon Mini installation kits are a low cost solution for gear changes in newer vehicles where the bearings...
      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
      $35.01
    • (0 reviews)
      # mpn4517167489
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Differential Pinion Installation Kit by Yukon Gear & Axle®. Location: Rear. Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles...
      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
      $114.42
    • (0 reviews)
      # mpn4517167020
      Ford Thunderbird with 28 Spline with Ford 7.5" Series Axle with Standard Open Differential 1985, Rear Spider Gear Set by Yukon Gear & Axle®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your...
      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
      $141.63
    • (0 reviews)
      # mpn4517170296
      Ford Thunderbird with Ford 7.5" Series Axle 1985, Rear Spider Gear Kit by Auburn Gear®. Location: Rear. Dominate the track or hit the trails with condidence 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
      $77.85
    • (0 reviews)
      # mpn4517170054
      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)
      # 1029100635
      Ford Thunderbird 1985, Differential Carrier Shim 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 products undergo rigid quality...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $17.31 - $21.36
    • (0 reviews)
      # mpn4517166249
      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
      $2.45
    • (0 reviews)
      # mpn4517168192
      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
      $4.00




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