1973 Pontiac Firebird Differentials & Components

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    • (0 reviews)
      # 111380285
      Pontiac Firebird Trans Am with 8.5" Ring Gear with General Motors Series Axle with 28 Spline 1973, 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...
      Direct-fit OE-quality replacement for your factory partHelps restore the proper functionality of your vehicle
      $199.66 - $303.73
    • (0 reviews)
      # 531081822
      Pontiac Firebird with 8.5" Ring Gear 1973, 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
      $166.95 - $204.95
    • (1 review)
      # 68642564
      Pontiac Firebird Trans Am with 8.5" Ring Gear with General Motors Series Axle with 28 Spline 1973, Rear Master Overhaul Bearing Kit by USA Standard Gear®. USA Standard Master Overhaul kits let you finish your install with confidence....
      Uses Koyo bearings and racesExpertly crafted from premium materials
      $131.16 - $137.84
    • (0 reviews)
      # 531171056
      Pontiac Firebird with 8.5" Ring Gear 1973, 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
      $62.64 - $107.54
    • (0 reviews)
      # mpn2412739
      Pontiac Firebird with 8.5" Ring Gear 1973, 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 hand.
      Replacement eliminates driveline grinding and whining soundsRobust steel construction ensures durability for years of service
      $106.95
    • (0 reviews)
      # mpn739976893
      Pontiac Firebird Trans Am with 8.5" Ring Gear with General Motors Series Axle with 28 Spline 1973, Front / Rear Spider Gear Set by USA Standard Gear®. USA Standard gear sets are the right choice to add confidence to your install. USA...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $132.42
    • (0 reviews)
      # 68642625
      Pontiac Firebird Trans Am with 8.5" Ring Gear with General Motors Series Axle with 28 Spline 1973, Rear Differential Bearing Kit by USA Standard Gear®. This kit uses Koyo bearings and races along with all high quality small parts. USA...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $91.36 - $126.09
    • (0 reviews)
      # mpn739977048
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle with 28 Spline 1973, Rear Mini Spool by USA Standard Gear®. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. When it comes to a...
      Installs into a standard open carrier caseProvides 100% traction to both wheels at all times
      $92.55
    • (0 reviews)
      # mpn739977046
      Pontiac Firebird Trans Am with 8.5" Ring Gear with General Motors Series Axle with 28 Spline 1973, Rear Pinion Installation Kit by USA Standard Gear®. USA Standard ring and pinion sets are the right choice to add confidence to your...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $66.77
    • (0 reviews)
      # mpn358588626
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle with 30 Pinion Spline 1973, Basic Series Differential Kit by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $15.70
    • (0 reviews)
      # mpn358588602
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle 1973, Complete Series™ Differential Kit 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
      $80.65
    • (0 reviews)
      # mpn358588584
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle 1973, Deluxe Series Differential Kit With Pinion 10-Bolt by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $114.19
    • (0 reviews)
      # mpn358588444
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle 1973, Differential Installation Kit 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
      $37.26
    • (0 reviews)
      # 531047204
      Pontiac Firebird 1973, 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
      $6.81 - $10.32
    • (0 reviews)
      # mpn2035566
      Pontiac Firebird with 8.75" Ring Gear / with 8.88" Ring Gear with M Series Axle / with P Series Axle 1973, Rear Differential Bearing Set by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball...
      Designed to effectively reduce frictionUltimate load handling capability
      $11.71
    • (0 reviews)
      # mpn2054350
      Pontiac Firebird with 8.5" Ring Gear / with 8.75" Ring Gear 1973, Rear Differential Pinion Seal by Timken®. Timken offers the right seal to keep your vehicle running optimally. Timken seals provide ultimate protection from contaminants...
      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
      $4.93
    • (0 reviews)
      # 531092072
      Pontiac Firebird 1973, 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
      $4.13 - $5.44
    • (0 reviews)
      # mpn1074426
      Pontiac Firebird with 8.5" Ring Gear with GM Series Axle 1973, Rear Axle Differential Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $8.38
    • (0 reviews)
      # mpn1074425
      Pontiac Firebird with 8.5" Ring Gear with GMC Transmission 1973, Rear Axle Differential Bearing Race by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle perform...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.24
    • (0 reviews)
      # mpn1848279422
      Pontiac Firebird with 8.5" Ring Gear with GM Series Axle 1973, Rear Axle Standard Differential Bearing and Seal Kit by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer...
      Spindle bearing and seal kitIncludes all components required to complete the repair
      $73.50
    • (0 reviews)
      # 531086943
      Pontiac Firebird with 8.5" Ring Gear with GM Series Axle 1973, Rear Differential Pinion Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $8.80 - $10.95
    • (0 reviews)
      # 531143746
      Pontiac Firebird with 8.5" Ring Gear with GM Series Axle 1973, Rear Differential Pinion Race by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle perform optimally. It...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.78 - $5.79
    • (0 reviews)
      # mpn1179154
      Pontiac Firebird with 8.5" Ring Gear with GMC Transmission 1973, Rear Outer Differential Pinion Repair Sleeve by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle...
      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
      $20.51
    • (0 reviews)
      # mpn1307881
      Pontiac Firebird with 8.5" Ring Gear with GM Series Axle 1973, Rear Outer Differential Pinion Seal by National®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...
      National oil seals are recognized worldwide for their quality and reliable performance for every type of repair.Design Type: Spring Loaded; Multi-Lip
      $5.41
    • (0 reviews)
      # mpn358588625
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle 1973, 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
      $12.27
    • (0 reviews)
      # mpn358588732
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle 1973, Differential Carrier Bearing Set by Ratech®. Bearings designed for use when installing aftermarket carriers only (Eaton, Moroso, ARB). These are not stock...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $26.56
    • (0 reviews)
      # mpn358588647
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle 1973, Differential Pinion Seal by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $4.24
    • (0 reviews)
      # mpn358588440
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle 1973, Differrential Carrier Shim Set 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
      $24.26
    • (0 reviews)
      # mpn358588458
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle 1973, Ring Gear Bolt 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
      $16.64
    • (0 reviews)
      # mpn358588433
      Pontiac Firebird with 8.5" Ring Gear with General Motors Series Axle 1973, Smart Sleeve Crush Sleeve by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $9.80
    • (0 reviews)
      # mpn4554792024
      Pontiac Firebird with GM 8.5" Series Axle with TrueTrac Differential 1973, 12 Point Ring Gear Bolt Kit by ARP®. The tremendous shock loads generated at launch by most any drag racing vehicle equipped with today’s sticky tire compounds...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $65.36
    • (0 reviews)
      # mpn4515293129
      Pontiac Firebird with GM 8.5" Series Axle with 10 Bolt 1973, Differential Cross Pin by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will perform better...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.99
    • (0 reviews)
      # mpn4515290619
      Pontiac Firebird with GM 7.5" Series Axle / with GM 8.5" Series Axle 1973, Differential Pinion Nut by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $4.99
    • (0 reviews)
      # 990421242
      Pontiac Firebird 1973, Differential Pinion Seal by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $6.99
    • (0 reviews)
      # mpn4515290620
      Pontiac Firebird with GM 8.5" Series Axle with 10 Bolt 1973, Mini Spool by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will perform better than...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $96.99
    • (0 reviews)
      # mpn4515294792
      Pontiac Firebird with GM 7.5" Series Axle 1973, Ring Gear Spacer by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will perform better than advertised....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $52.99
    • (0 reviews)
      # 990434068
      Pontiac Firebird with GM 8.5" Series Axle with 10 Bolt 1973, Ring and Pinion Gear Set by AllStar Performance®. CA Prop 65 WARNING - This product contains chemicals known to the State of California to cause cancer, and/or birth defects...
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $149.99
    • (0 reviews)
      # mpn4515293218
      Pontiac Firebird with GM 8.5" Series Axle with 10 Bolt 1973, Ring and Pinion Installation Bearing Kit by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and...
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $97.99
    • (0 reviews)
      # mpn4515293621
      Pontiac Firebird with GM 8.5" Series Axle with 10 Bolt 1973, Ring and Pinion Installation Shim Kit by AllStar Performance®. CA Prop 65 WARNING - This product contains chemicals known to the State of California to cause cancer, and/or...
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $43.99
    • (0 reviews)
      # mpn4561985147
      Pontiac Firebird with 7/16" ring Gear Bolts with Large Journal with GM 8.5" Series Axle 1973, Differential Bearing by Alloy USA®. Dominate the track or hit the trails with condidence by fine tuning your vehicle for neck-breaking speed...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $71.65
    • (0 reviews)
      # mpn4561984334
      Pontiac Firebird with GM BOP Series Axle 1973, Differential Pinion Seal by Alloy USA®. Dominate the track or hit the trails with condidence by fine tuning your vehicle for neck-breaking speed and performance with this premium...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $9.47
    • (0 reviews)
      # mpn4561984219
      Pontiac Firebird with GM 8.5" Series Axle 1973, Rear Differential Master Overhaul Kit by Alloy USA®. 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
      $183.00
    • (0 reviews)
      # 1346596888
      Pontiac Firebird 1973, Ring and Pinion Gear Set by Alloy USA®. Mounting larger diameter wheels and tires requires a gear ratio change to maintain the same performance. But even if you're not getting new skins, changing to a lower gear...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $265.23 - $396.84
    • (0 reviews)
      # mpn4561984899
      Pontiac Firebird with GM 8.5" Series Axle / with GM 8.6" Series Axle with 10 Bolt 1973, Spider Gear Set by Alloy USA®. Dominate the track or hit the trails with condidence by fine tuning your vehicle for neck-breaking speed and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $180.04
    • (0 reviews)
      # 1028929027
      Pontiac Firebird with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1973, ECTED Max™ Rear Limited Slip Differential by Auburn Gear®. With Selectable Full Locker. The ECTED Max is a selectable traction...
      Expertly crafted from superior materialsProvides exceptional reliability
      $776.82
    • (0 reviews)
      # 1029211532
      Pontiac Firebird with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1973, HP™ Rear Limited Slip Differential by Auburn Gear®. High Performance. Auburn Gear’s flagship limited-slip differential gives you...
      Expertly crafted from superior materialsProvides exceptional reliability
      $436.80
    • (0 reviews)
      # 1028961111
      Pontiac Firebird with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1973, Pro™ Rear Limited Slip Differential by Auburn Gear®. Turns your torque up another notch, offering an even higher bias ratio and...
      Expertly crafted from superior materialsProvides exceptional reliability
      $549.12
    • (0 reviews)
      # 503475088
      Pontiac Firebird with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1973, Rear Differential Spring Retainer Service Kit by Auburn Gear®. 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
      $113.82
    • (0 reviews)
      # 503351020
      Pontiac Firebird with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1973, Rear Differential Wiring Harness Kit by Auburn Gear®. With Switch. Dominate the track or hit the trails with condidence 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
      $85.36
    • (0 reviews)
      # mpn4517168391
      Pontiac Firebird with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt with 1.20" Axle Shaft Diameter 1973, Detroit Truetrac™ Rear Differential by Eaton®. The Detroit Truetrac is a helical-gear style performance...
      Helical-style pinion gearsLimited-slip operation
      $512.73
    • (0 reviews)
      # mpn4517168680
      Pontiac Firebird with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt with 1.20" Axle Shaft Diameter with Manual Locking Hubs 1973, Posi™ Rear Differential by Eaton®. The Eaton Posi limited-slip differential prevents...
      Superior rebuildable designRace-bred carbon friction discs
      $499.99
    • (0 reviews)
      # 503313427
      Pontiac Firebird with 2.73 and Up Gear Ratio with GM 8.5" Series Axle / with GM 8.625" Series Axle with 10 Bolt 1973, A-Line Ring and Pinion Gear Set by Motive Gear®. Motive Gear stock performance ring and pinions are excellent...
      Quiet operationComputer controlled heat treatment
      $262.66 - $281.32
    • (0 reviews)
      # 503585198
      Pontiac Firebird with GM 8.5" Series Axle with 10 Bolt 1973, 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
      $116.07 - $166.40
    • (0 reviews)
      # mpn4517168181
      Pontiac Firebird with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1973, Differential Carrier by Motive Gear®. Without Internal Kit. 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
      $141.20
    • (0 reviews)
      # mpn4517166232
      Pontiac Firebird with 28 Spline with GM 8.5" Series Axle with 10 Bolt 1973, 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
      $163.46
    • (0 reviews)
      # 1028929013
      Pontiac Firebird 1973, 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
      $31.21 - $31.53
    • (0 reviews)
      # mpn4517167611
      Pontiac Firebird with 8.5" Series Axle with 10 Bolt 1973, 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
      $3.01
    • (0 reviews)
      # mpn4517165997
      Pontiac Firebird 6.6L / 7.5L with GM 8.5" Series Axle with 10 Bolt 1973, Differential Gear Installation Kit by Motive Gear®. 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
      $108.13
    • (0 reviews)
      # 503635266
      Pontiac Firebird with GM 8.5" Series Axle with 10 Bolt 1973, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $115.50 - $137.35
    • (0 reviews)
      # 503509126
      Pontiac Firebird with GM 8.5" Series Axle with 10 Bolt 1973, Differential Pinion 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 with...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $79.80 - $95.11




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