1990 Pontiac Firebird Differentials & Components

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    • (0 reviews)
      # mpn4517166414
      Pontiac Firebird with 7.2" Series Axle / with 7.5" Series Axle / with 7.25" Series Axle / with 7.75" Series Axle / with 7.625" Series Axle / with 8.2" Series Axle / with 8.5" Series Axle / with 8.875" Series Axle / with Dana 44 Series...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $11.39
    • (0 reviews)
      # mpn4517167735
      Pontiac Firebird with Chrysler 9.25" Series Axle / with GM 7.5" Series Axle / with GM 7.75" Series Axle / with GM 7.625" Series Axle / with GM 8" Series Axle / with GM 8.2" Series Axle / with GM 8.5" Series Axle / with GM 8.625" Series...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $2.99
    • (0 reviews)
      # mpn4517165968
      Pontiac Firebird with 7.5" Series Axle with 10 Bolt 1990, Differential Ring Gear Spacer 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...
      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
      $44.18
    • (0 reviews)
      # 503367327
      Pontiac Firebird with 3.23 and Up Gear Ratio with GM 7.5" Series Axle with 10 Bolt 1990, Rear A-Line Ring and Pinion Gear Set by Motive Gear®. Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced...
      Quiet operationComputer controlled heat treatment
      $149.05
    • (0 reviews)
      # 1480692955
      Pontiac Firebird 1990, 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 company products undergo rigid quality...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $76.46 - $223.36
    • (0 reviews)
      # 503295438
      Pontiac Firebird with GM 7.625" Series Axle with 10 Bolt 1990, Rear Differential Carrier 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
      $105.90 - $193.96
    • (0 reviews)
      # mpn4517166233
      Pontiac Firebird with 26 Spline with GM 7.5" Series Axle with 10 Bolt 1990, 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
      $111.38
    • (0 reviews)
      # 1480604963
      Pontiac Firebird 1990, 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. All of company products undergo rigid...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $92.26 - $148.17
    • (0 reviews)
      # 503675573
      Pontiac Firebird with GM 7.5" Series Axle with 10 Bolt 1990, 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
      $122.43 - $133.43
    • (0 reviews)
      # 503687062
      Pontiac Firebird with Open Differential with 7.5" Series Axle with 10 Bolt 1990, Rear Mini Spool 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
      $83.37 - $83.88
    • (0 reviews)
      # 503557560
      Pontiac Firebird with GM 7.5" Series Axle with 10 Bolt 1990, 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
      $275.54 - $349.52
    • (0 reviews)
      # mpn4517172536
      Pontiac Firebird with 3.23 and Up Gear Ratio with GM 7.5" Series Axle with 10 Bolt 1990, Rear Pro Gear Ring and Pinion Gear Set by Motive Gear®. Motive Gear Pro Gear ring and pinions are perfect for dedicated racing or off-road vehicle....
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $512.57
    • (0 reviews)
      # 503366489
      Pontiac Firebird 1990, 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 pinions for easy setup, superior strength,...
      Quiet operationComputer controlled heat treatment
      $240.61 - $286.44
    • (0 reviews)
      # 503552051
      Pontiac Firebird with Open Differential 1990, Lock Right Locker by Powertrax®. Powertrax Lock-Right performance lockers’ straight-line performance is equal to a solid spool axle, yet they automatically unlock during turns. When...
      Brute force devices for rugged applicationsReplacement of differential case not required
      $325.13 - $326.25
    • (0 reviews)
      # 503642451
      Pontiac Firebird with Open Differential with 10 Bolt 1990, No-Slip Traction System by Powertrax®. For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential...
      Extreme Traction PerformanceEnables a 2 Wheel Drive to outperform a 4 Wheel Drive in poor traction conditions
      $379.02
    • (0 reviews)
      # mpn4517168514
      Pontiac Firebird with 28 Spline with 3.23 and Up Gear Ratio with GM 7.625" Series Axle 1990, Open Grip LS Traction System by Powertrax®. The Powertrax Grip LS, is a clutch-type differential in a forged steel case. This differential uses...
      Comes Fully AssembledCarbon Fiber and Steel Friction Plate Technology
      $367.22
    • (0 reviews)
      # 973884928
      Pontiac Firebird Formula / Trans Am / Trans Am GTA 1990, Differential Master Overhaul Kit by Revolution Gear & Axle®. Designed utilizing the latest technology, this product by Revolution Gear & Axle features premium quality and will...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $110.43 - $123.49
    • (0 reviews)
      # mpn4517167841
      Pontiac Firebird with GM 7.5" Series Axle with 10 Bolt 1990, 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...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $147.27
    • (0 reviews)
      # mpn4517168542
      Pontiac Firebird with 7.5" Series Axle with 10 Bolt 1990, 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...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $32.11
    • (0 reviews)
      # mpn4517169977
      Pontiac Firebird with GM 7.5 Series Axle / with GM 7.625" Series Axle 1990, Differential Mega Bearing Kit by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $166.73
    • (0 reviews)
      # 503475295
      Pontiac Firebird with GM 7.5" Series Axle 1990, 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
      $16.68 - $46.63
    • (0 reviews)
      # 1028993650
      Pontiac Firebird with 3.23 and Numerically Higher with GM 7.5" Series Axle/ with 7.625" Series Axle with 10 Bolt Empty Case Housing 1990, Excel™ Differential Carrier by Richmond®. Designed utilizing the latest technology, this product...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $101.83 - $117.39
    • (0 reviews)
      # mpn4517169698
      Pontiac Firebird with GM 7.5" Series Axle/ with 7.625" Series Axle with 10 Bolt 1990, Excel™ Rear Differential Bearing Kit by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $98.04
    • (0 reviews)
      # mpn4517168819
      Pontiac Firebird with 26 Spline with GM 7.5" Series Axle/ with 7.625" Series Axle with 10 Bolt with 1.16" Axle Spline Diameter 1990, Excel™ Rear Differential Carrier Gear Kit by Richmond®. Designed utilizing the latest technology,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $124.66
    • (0 reviews)
      # mpn4561984058
      Pontiac Firebird with GM 7.5" Series Axle 1990, Excel™ Rear Differential Pinion Shaft by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and will perform better than advertised....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $22.09
    • (0 reviews)
      # 1028982489
      Pontiac Firebird with GM 7.5" Series Axle/ with 7.625" Series Axle with 10 Bolt 1990, Excel™ Rear Ring and Pinion Gear Set by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $164.95 - $194.50
    • (0 reviews)
      # 1480917821
      Pontiac Firebird 1990, Rear Mini Spool by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $79.65 - $106.42
    • (0 reviews)
      # 503492086
      Pontiac Firebird with GM 7.5" Series Axle with 10 Bolt 1990, 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
      $235.45 - $268.12
    • (0 reviews)
      # mpn4517168702
      Pontiac Firebird 1990, Spool 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 differential component that delivers the ultimate in...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $106.42
    • (0 reviews)
      # 503675428
      Pontiac Firebird 1990, 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 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
      $158.43 - $218.15
    • (0 reviews)
      # mpn4576984879
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, Rear Differential Carrier Bearing Kit by Yukon Gear & Axle®. Includes: Carrier bearings, races and "super" carrier shim kit. Yukon Carrier installation...
      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
      $68.96
    • (0 reviews)
      # mpn4517171265
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, Rear Differential Clutch Guide by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking...
      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
      $6.84
    • (0 reviews)
      # mpn4517166906
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" with Dura Grip Locker 1990, Rear Differential Clutch Set by Yukon Gear & Axle®. Yukon uses higher quality materials and better techniques than OEM to ensure a...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $138.07
    • (0 reviews)
      # mpn4517167312
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" with Posi Differential 1990, Rear Differential Cross Pin Bolt by Yukon Gear & Axle®. 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
      $3.81
    • (1 review)
      # 68643001
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, Rear Differential Cross Pin Shaft 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
      $30.32 - $46.27
    • (0 reviews)
      # 503686655
      Pontiac Firebird 1990, 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 advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $4.60 - $5.74
    • (0 reviews)
      # mpn4576985588
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, 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...
      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
      $33.06
    • (0 reviews)
      # 503541125
      Pontiac Firebird 1990, 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 offers more tailor-made kits...
      Most complete kits on the marketComplete overhaul package to rebuild differential
      $206.30 - $341.58
    • (0 reviews)
      # mpn4576986041
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, Rear Differential Mini Installation Kit by Yukon Gear & Axle®. Yukon Mini installation kits are a low cost solution for gear changes in newer 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
      $76.00
    • (0 reviews)
      # mpn4517168341
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" with Standard Open Differential 1990, Rear Differential Pinion Gear Thrust Washer by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by...
      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
      $6.38
    • (0 reviews)
      # 503549519
      Pontiac Firebird 1990, 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 bearings and races can be...
      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
      $128.93 - $221.53
    • (0 reviews)
      # 503631041
      Pontiac Firebird 1990, 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 life. Yukon Gear & Axle...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $9.89 - $17.60
    • (0 reviews)
      # 503502248
      Pontiac Firebird 1990, 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 off-road applications.
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $1.49 - $7.44
    • (0 reviews)
      # mpn4517167275
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, Rear Differential Pinion Nut Spacer by Yukon Gear & Axle®. Designed utilizing the latest technology, this product by Yukon Gear & Axle features premium...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $9.09
    • (0 reviews)
      # mpn4517172907
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, Rear Differential Shim Kit 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
      $21.54
    • (0 reviews)
      # mpn4517170957
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" with Posi Differential 1990, Rear Differential Spring Kit by Yukon Gear & Axle®. With Preload Plates. Dominate the track or hit the trails with confidence by...
      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
      $111.70
    • (0 reviews)
      # mpn4576988656
      Pontiac Firebird Trans Am with 28 Spline with 3.23 and Up Gear Ratio GM 7.6" Series Axle / with GM 7.5" 1990, Rear Dura Grip Carrier Case by Yukon Gear & Axle®. Without Spider Gears. Dominate the track or hit the trails with confidence...
      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
      $262.61
    • (0 reviews)
      # mpn4517166638
      Pontiac Firebird Trans Am with 28 Spline with 3.23 and Up Gear Ratio GM 7.6" Series Axle / with GM 7.5" 1990, Rear Dura Grip Positraction by Yukon Gear & Axle®. The Yukon Dura Grip an example of the popular clutch plate limited slips...
      Provides aggressive yet smooth traction to give you the confidence and performance you needFully rebuildable 4 spring design with composite clutches
      $542.16
    • (0 reviews)
      # 503428249
      Pontiac Firebird 1990, 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 conditions. Whether it’s on...
      Smooth finishEasy Set-Up
      $271.68 - $430.87
    • (0 reviews)
      # mpn4576988414
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, Rear Mini Spool by Yukon Gear & Axle®. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into...
      Provides 100% traction to both wheels at all timesInstalls into standard open carrier case
      $169.75
    • (0 reviews)
      # 503686476
      Pontiac Firebird 1990, 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. Dominate the track or hit...
      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
      $15.87 - $21.95
    • (0 reviews)
      # mpn4576984888
      Pontiac Firebird Standard Transmission with GM 7.75" Series Axle 1990, Rear Replacement 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...
      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
      $8.54
    • (0 reviews)
      # mpn4517168870
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, Rear Ring Gear Bolt by Yukon Gear & Axle®. Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $2.87
    • (0 reviews)
      # mpn4576985207
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, 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...
      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
      $69.96
    • (0 reviews)
      # 68643120
      Pontiac Firebird Trans Am with 28 Spline GM 7.6" Series Axle / with GM 7.5" 1990, Rear Spider Gear Set 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
      $123.59 - $189.79
    • (0 reviews)
      # 503510094
      Pontiac Firebird Trans Am with 28 Spline with 3.23 and Up Gear Ratio GM 7.6" Series Axle / with GM 7.5" 1990, Rear Standard Open Carrier Case by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning...
      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
      $228.42 - $325.79
    • (0 reviews)
      # 503349998
      Pontiac Firebird 1990, 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 premium differential component...
      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
      $26.94
    • (0 reviews)
      # mpn4554795687
      Differential Mini Spool by AFCO®. AFCO parts improve performance across many racing and performance applications. The common thread among our racing and performance parts is unmatched performance. AFCO products are built to win. AFCO...
      Perfect solution for racing or performance applicationsMade to provide unmatched efficiency and win
      $119.99
    • (0 reviews)
      # 503671057
      Differential Complete Installation Kit by Big End Performance®. Dominate the track or hit the trails with condidence by fine tuning your vehicle for neck-breaking speed and performance with this premium differential that delivers the...
      High quality at an affordable priceExpertly made from premium materials
      $110.37 - $123.97
    • (0 reviews)
      # 503370458
      Mini Spool by Big End Performance®. Manufactured of 8620 nonleaded steel. Replaces OEM spider gears in open carrier units, locking together both axles for even power to both tires used mostly in drag racing & dirt oval track. Machined...
      High quality at an affordable priceExpertly made from premium materials
      $35.78 - $108.85




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