1989 GMC G-Series Differentials & Components

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    • (0 reviews)
      # 531133055
      GMC G-Series 1989, 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 steel construction ensures...
      Replacement eliminates driveline grinding and whining soundsDirect replacement for a proper fit
      $106.85 - $219.18
    • (0 reviews)
      # 111376497
      GMC G-Series with GM 8.5" Series Axle with 30 Spline 1989, 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 full...
      Direct-fit OE-quality replacement for your factory partHelps restore the proper functionality of your vehicle
      $195.75 - $288.40
    • (0 reviews)
      # 451321365
      GMC G-Series with GM 8.5" Series Axle with 30 Spline Axle 1989, Rear Spartan Locker by USA Standard Gear®. With Heavy Duty Cross Pin Shaft. The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. The Spartan...
      Made from 9310 steel for added strengthReplaces the spiders in a standard carrier case
      $384.25
    • (0 reviews)
      # 531053231
      GMC G-Series 1989, 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 bearings, and all...
      Designed to effectively reduce frictionUltimate load handling capability
      $65.16 - $150.75
    • (0 reviews)
      # 531175995
      GMC G-Series 1989, 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. The kit includes...
      Replacement eliminates driveline grinding and whining soundsRobust steel construction ensures durability for years of service
      $98.95 - $238.40
    • (0 reviews)
      # 68589566
      GMC G-Series with GM 8.5" Series Axle with 30 Spline 1989, Rear Differential Bearing Kit by USA Standard Gear®. This kit uses Koyo bearings and races along with all high quality small parts. USA Standard Gear does extensive research for...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $86.54 - $119.44
    • (1 review)
      # 68589627
      GMC G-Series with GM 8.5" Series Axle with 30 Spline 1989, 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 races....
      Uses Koyo bearings and racesExpertly crafted from premium materials
      $124.23 - $130.57
    • (0 reviews)
      # 68589716
      GMC G-Series with GM 8.5" Series Axle with 30 Spline 1989, Rear Pinion Installation Kit 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 full...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $63.87
    • (0 reviews)
      # 68589810
      GMC G-Series with GM 8.5" Series Axle with 30 Spline 1989, 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 line of gear sets for...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $120.13
    • (0 reviews)
      # mpn915863
      GMC G1500 / G2500 with 10 Bolt Housing Cover with 8.5" Ring Gear with 28 Spline 1989, Rear Spider Gear Set by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more...
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $100.42
    • (0 reviews)
      # 531105287
      GMC G-Series 1989, Rear Axle Differential Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat treatment technology to ensure ultimate performance...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $7.99 - $26.37
    • (0 reviews)
      # mpn358588626
      GMC G1500 / G2500 GM 8.5" Axle 30 Pinion Spline 1989, Basic Series Differential Kit by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $19.82
    • (0 reviews)
      # mpn358588602
      GMC G1500 / G2500 GM 8.5" Axle 1989, Complete Series Differential Kit by Ratech®. Made in USA. 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
      $87.71
    • (0 reviews)
      # mpn358588584
      GMC G1500 / G2500 GM 8.5" Axle 1989, Deluxe Series Differential Kit by Ratech®. Made in USA. 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
      $126.40
    • (0 reviews)
      # 531089111
      GMC G-Series 1989, 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 design,...
      Designed to effectively reduce frictionUltimate load handling capability
      $6.86 - $24.29
    • (0 reviews)
      # mpn2040420
      GMC G3500 with 9.5" Ring Gear 1989, Rear Differential Bearing Set by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered roller bearings, and all...
      Designed to effectively reduce frictionUltimate load handling capability
      $25.31
    • (0 reviews)
      # 531178682
      GMC G-Series 1989, Rear Differential Pinion 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
      $11.16 - $31.95
    • (0 reviews)
      # 531089061
      GMC G-Series 1989, Rear Differential Pinion 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...
      OE quality fit, performance, and reliabilityCost-effective friction management solution
      $5.87 - $14.34
    • (0 reviews)
      # 531098514
      GMC G-Series 1989, Rear Differential Pinion Repair Sleeve by Timken®. Type: Optional. Repair sleeves restore the sealing surface on yokes and shafts, avoiding expensive components replacement. This hard, wear-resistant, and ultra low...
      Restores the sealing surface on worn shafts and yokesEliminates the need to replace expensive components that are otherwise serviceable
      $18.40 - $19.16
    • (0 reviews)
      # 531202152
      GMC G-Series 1989, 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
      $4.89 - $14.64
    • (0 reviews)
      # 531106665
      GMC G-Series 1989, 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
      $4.24 - $12.84
    • (0 reviews)
      # mpn2377089
      GMC G-Series with 8.5-8.75" Ring Gear 1989, Differential Crush Sleeve 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...
      Direct replacement for a proper fit every timeDesigned specifically for rear-wheel drive vehicles
      $2.77
    • (0 reviews)
      # mpn2377088
      GMC G1500 / G2500 with 8.5" Ring Gear / with 8.625" Ring Gear 1989, Rear Differential Pinion Shaft Lock Bolt by Dorman®. Engineered from high-quality metal, Dorman’s Differential Pinion Shaft Lock Bolt effectively retains the pinion...
      Replacement restores drivabilityDirect replacement for a proper fit
      $1.60
    • (0 reviews)
      # 531126175
      GMC G-Series 1989, Advantage™ Rear Differential Bearing by ACDelco®. Don’t be “indifferent” toward your differential. It plays a vital role in moving your vehicle and ensuring a smooth ride. Designed utilizing the latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $7.73 - $11.23
    • (0 reviews)
      # mpn3065960247
      GMC G1500 with 8.5" Ring Gear 1989, Advantage™ Rear Differential Carrier Bearing Race by ACDelco®. Don’t be “indifferent” toward your differential. It plays a vital role in moving your vehicle and ensuring a smooth ride....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $6.93
    • (0 reviews)
      # 531173127
      GMC G-Series 1989, GM Original Equipment™ Differential Magnet by ACDelco®. Don’t be “indifferent” toward your differential. It plays a vital role in moving your vehicle and ensuring a smooth ride. Designed utilizing the latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $5.90
    • (0 reviews)
      # 531175122
      GMC G-Series 1989, GM Original Equipment™ Differential Pinion Bearing by ACDelco®. Includes: With Cup and Cone. Don’t be “indifferent” toward your differential. It plays a vital role in moving your vehicle and ensuring a smooth...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $40.56 - $69.04
    • (0 reviews)
      # 531201102
      GMC G-Series 1989, GM Original Equipment™ Rear Differential Bearing by ACDelco®. Includes: With Cup and Cone. Don’t be “indifferent” toward your differential. It plays a vital role in moving your vehicle and ensuring a smooth...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $29.48 - $91.64
    • (0 reviews)
      # 531153619
      GMC G-Series 1989, 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 optimally. It is built to the original equipment...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.28 - $12.86
    • (0 reviews)
      # 531110937
      GMC G-Series 1989, Rear Axle Differential Bearing and Seal Kit by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat treatment technology to ensure...
      Spindle bearing and seal kitIncludes all components required to complete the repair
      $74.01 - $178.13
    • (0 reviews)
      # 531167250
      GMC G-Series 1989, Rear Differential Pinion Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat treatment technology to ensure ultimate...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $8.10 - $33.19
    • (0 reviews)
      # 531198917
      GMC G-Series 1989, 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 is built to the original equipment...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.34 - $20.53
    • (0 reviews)
      # 531052930
      GMC G-Series 1989, Rear Outer Differential Pinion Repair Sleeve by National®. Width: 0.563". This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle perform optimally. It is built to...
      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
      $19.82 - $20.66
    • (0 reviews)
      # 531070048
      GMC G-Series 1989, 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 and with customers in mind, this product by...
      Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection
      $5.45 - $10.63
    • (0 reviews)
      # mpn358588668
      GMC G1500 / G2500 GM 8.5" Axle 28 Pinion Spline 1989, Differenrial Pinion Bearing by Ratech®. Made in USA. 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
      $11.91
    • (0 reviews)
      # 202155335
      GMC G1500 / G2500 GM 8.5" Axle 30 Pinion Spline 1989, Differential Bearing Kit by Ratech®. Made in USA. 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
      $62.64 - $66.56
    • (0 reviews)
      # mpn358588732
      GMC G1500 / G2500 GM 8.5" Axle 9-Bolt 1989, Differential Carrier Bearing Set by Ratech®. Stock 7.75" 9 bolt or GM 8.5 with aftermarket carrier. 3.062 I.D., carrier bearings. Bearings designed for use when installing aftermarket carriers...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $31.75
    • (0 reviews)
      # mpn358588647
      GMC G1500 / G2500 GM 8.5" Axle 1989, Differential Pinion Seal by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $6.44
    • (0 reviews)
      # mpn358588440
      GMC G1500 / G2500 GM 8.5" Axle 2.891 in. Bearing Diameter 1989, Differrential Carrier Shim Set by Ratech®. Made in USA. 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
      $28.83
    • (0 reviews)
      # mpn358588446
      GMC G3500 Dana 60 Axle / Dana 70-U Axle 1989, Pinion Shim Set by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $13.31
    • (0 reviews)
      # mpn358588458
      GMC G1500 / G2500 GM 8.5" Axle 1989, Ring Gear Bolt Set by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for your...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $19.10
    • (0 reviews)
      # mpn358588433
      GMC G1500 / G2500 GM 8.5" Axle 1989, Smart Sleeve Crush Sleeve by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $13.45
    • (0 reviews)
      # mpn358588625
      GMC G1500 / G2500 GM 8.5" Axle 1989, Solid Spacer with Shim Pack by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $16.29
    • (0 reviews)
      # 503694232
      GMC G-Series 1989, Differential Carrier by Motive Gear®. Without Internal Kit. Carrier Type: Open. 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
      $77.55 - $177.58
    • (1 review)
      # 199193334
      GMC G1500 / G2500 with GM 8.5" Series Axle / with GM 8.625" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1989, Performance Ring and Pinion Gear Set by Motive Gear®. Motive Gear Performance ring and pinions are perfect for...
      Central contact patternCNC start to finish
      $210.38 - $265.28
    • (0 reviews)
      # 126497608
      GMC G-Series 1989, 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, quality,...
      Quiet operationComputer controlled heat treatment
      $199.86 - $332.11
    • (0 reviews)
      # mpn4475657251
      GMC G1500 / G2500 with 30 Spline with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1989, HP™ Rear Differential by Auburn Gear®. Type: Limited Slip. High Performance. Auburn Gear’s flagship limited-slip differential...
      $416.16
    • (0 reviews)
      # mpn358577569
      GMC G1500 / G2500 with 30 Spline with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1989, Pro™ Rear Differential by Auburn Gear®. Type: Limited Slip. Turns your torque up another notch, offering an even higher bias...
      Expertly crafted from superior materialsProvides exceptional reliability
      $518.98
    • (0 reviews)
      # 503488977
      GMC G-Series 1989, Detroit Locker® Rear Differential by Eaton®. The Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bullet-proof design is...
      100% automatic locking - no driver action neededProvides maximum amount of traction to both wheel ends
      $536.61 - $763.99
    • (0 reviews)
      # 503450142
      GMC G-Series 1989, Detroit Truetrac® Rear Differential by Eaton®. The Detroit Truetrac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics. Operation of the...
      Helical-style pinion gearsLimited-slip operation
      $516.27 - $871.96
    • (0 reviews)
      # 503325399
      GMC G-Series with 1.31" Axle Shaft Diameter with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1989, ELocker™ Rear Differential by Eaton®. The Eaton ELocker is an electronic, selectable differential designed for drivers...
      Selectable 'push-button' operationPositive-electronic locking mechanism
      $871.96
    • (0 reviews)
      # 503677229
      GMC G-Series with Manual Locking Hubs with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1989, Posi™ Rear Differential by Eaton®. The Eaton Posi limited-slip differential prevents wheel slip before it can get started....
      Superior rebuildable designRace-bred carbon friction discs
      $509.99
    • (0 reviews)
      # 503333617
      GMC G1500 / G2500 with 2.73 and Up Gear Ratio 1989, Grip LS Traction System by Powertrax®. Type: Open. The Powertrax Grip LS, is a clutch-type differential in a forged steel case. This differential uses a set of carbon clutch discs to...
      Comes Fully AssembledCarbon Fiber and Steel Friction Plate Technology
      $443.35
    • (0 reviews)
      # 503682280
      GMC G-Series 1989, Grip Lok Traction System by Powertrax®. Type: Open. If you are looking for the ultimate in traction, the Powertrax Grip Lok can handle the torque of engines producing up to 550hp. It combines the fully-automatic...
      Comes Fully AssembledTraction Adding Differential Technology
      $485.95 - $626.83
    • (0 reviews)
      # 503562455
      GMC G-Series with Open Differential 1989, 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 extreme...
      Brute Force Devices For Rugged ApplicationsReplacement Of Differential Case Not Required
      $336.26 - $460.06
    • (0 reviews)
      # 503547213
      GMC G-Series with Open Differential 1989, 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 technology. It...
      Extreme Traction PerformanceEnables a 2 Wheel Drive to outperform a 4 Wheel Drive in poor traction conditions
      $443.21 - $488.68
    • (0 reviews)
      # 503604436
      GMC G2500 / G3500 with Dana 60 Series Axle with 4.56 and Up Gear Ratio 1989, Pro 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
      $359.45 - $407.67
    • (0 reviews)
      # 503630027
      GMC G-Series 1989, 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 first-run steel, never recycled material, Richmond ring...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $221.45 - $277.95
    • (0 reviews)
      # mpn466411150
      GMC G3500 without Limited Slip Differential with Dana 60 Series Axle with 4.10 and Down Gear Ratio 1989, Rear Differential Case Kit by Spicer®. Without Spider Gears. Type: Unloaded. This product is made of high-quality materials to...
      High quality at an affordable priceExpertly made from premium materials
      $151.87
    • (0 reviews)
      # 503692347
      GMC G-Series 1989, 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 which are covered with a friction...
      Provides aggressive yet smooth traction to give you the confidence and performance you needFully rebuildable 4 spring design with composite clutches
      $495.09 - $615.80




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