1981 Buick Estate Differentials
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Yukon Gear & Axle®Differential Adapter SleeveDifferential Adapter 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 vehicle and lifestyle, it...Expertly crafted from premium materialsDesigned to match rigorous quality standards$17.89 - $21.89 - Richmond®Differential Pinion Bearing Solid SpacerDifferential Pinion Bearing Solid Spacer 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$12.61 - $24.72
- ARB®Air Locker Ring Gear SpacerAir Locker Ring Gear Spacer by ARB®. Few products can transform the performance and ability of a 4WD like an Old Man Emu vehicle specific suspension upgrade.Engineered for both on road and off road drivabilityDurability proven under extensive laboratory and real life testing, supported by scientific data logging$19.30 - $78.00
- Eaton®ELocker™ Wiring KitELocker™ Wiring Kit by Eaton®. Designed utilizing the latest technology, this product by Eaton features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$183.99
- Frankland Racing®Differential Pinion Bearing RaceDifferential Pinion Bearing Race by Frankland Racing®. Designed utilizing the latest technology, this product by Frankland Racing features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...High quality at an affordable priceExpertly made from premium materials$38.02
- Prothane®Differential Bushing Insert KitDifferential Bushing Insert Kit by Prothane®. 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 ultimate in high...High quality at an affordable priceExpertly made from premium materials$10.06 - $52.68
- Motive Gear®Standard Open DifferentialBuick Estate with GM 8.5" Series Axle 1981, Standard Open Differential 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...Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best$107.83 - $198.78
- Powertrax®Lock Right LockerBuick Estate with Open Differential 1981, Lock Right Locker by Powertrax®. With Couplers. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle...Brute force devices for rugged applicationsReplacement of differential case not required$361.68 - $490.05
- Richmond®Excel™ Front Mini SpoolBuick Estate with GM 8.5" Series Axle 1981, Excel™ Front 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$83.67
- Richmond®Excel™ Full SpoolBuick Estate with GM 8.5" Series Axle 1981, Excel™ Full 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$162.59
- Richmond®Rear SpoolBuick Estate with 45 Degree Pressure Angle Axles, 10 Bolt, C-Clip Eliminator Kit, GM 8.5" Series Axle 1981, Rear Spool by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking...Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability$213.42 - $220.46
- Auburn Gear®ECTED Max™ Rear Limited Slip DifferentialBuick Estate 5.0L with 28 Spline, 2.73 and Up Gear Ratio, 10 Bolt, GM 8.5" Series Axle 1981, ECTED Max™ Rear Limited Slip Differential by Auburn Gear®. With Selectable Full Locker. The ECTED Max™ is a selectable traction device; an...Expertly crafted from superior materialsProvides exceptional reliability$1,575.77
- Powertrax®Grip LS Traction SystemBuick Estate with 28 Spline 1981, Grip LS Traction System by Powertrax®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...Comes Fully AssembledCarbon Fiber and Steel Friction Plate Technology$498.63
- Powertrax®No-Slip Traction SystemBuick Estate with Open Differential 1981, 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$461.70 - $563.56
- Strange®Motive Gear Performance™ Ring and Pinion Gear SetBuick Estate 1981, Motive Gear Performance™ Ring and Pinion Gear Set by Strange®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium differential...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$453.10
- ACDelco®Gold™ Differential Pinion RaceBuick Estate 1981, Gold™ Differential Pinion Race by ACDelco®. Designed utilizing the latest technology, this product 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$9.61 - $13.39Save: 15%$8.17 - $11.38
- ACDelco®Gold™ Differential Pinion SealBuick Estate with 8.5" Ring Gear 1981, Gold™ Differential Pinion Seal by ACDelco®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$4.51Save: $0.67 (15%)$3.84
- ACDelco®Professional™ Differential Pinion BearingBuick Estate 1981, Professional™ Differential Pinion Bearing by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$12.76 - $19.39Save: 15%$10.84 - $16.48
- Richmond®Differential Gear Installation KitBuick Estate with 10 Bolt, GM 8.5" Series Axle 1981, 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$65.04
- Richmond®Differential Mega Bearing KitBuick Estate 1981, 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 performance with this premium differential component that...Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability$192.79 - $196.84
- Transtar Industries®Differential Rebuild Bearing KitBuick Estate 1981, Differential Rebuild Bearing Kit by Transtar Industries®. Designed utilizing the latest technology, this product by Transtar Industries features premium quality and will perform better than advertised. Perfect for...Superior in durability and wear resistanceSuperior proprietary coating for maximum durability$68.13 - $115.68
- Richmond®Differential Carrier Shim SetBuick Estate 1981, Differential Carrier Shim Set 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.80 - $10.93
- Richmond®Differential Pinion Bearing Solid SpacerBuick Estate 1981, Differential Pinion Bearing Solid Spacer 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$7.87
- Richmond®Excel™ Rear Differential Bearing KitBuick Estate with 10 Bolt, GM 7.5" Series Axle 1981, Excel™ Rear Differential Bearing Kit by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and will perform better than...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$105.97
- Auburn Gear®Differential Spring Retainer Service KitBuick Estate 5.0L with 10 Bolt 1981, Differential Spring Retainer Service Kit by Auburn Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium...Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain$62.62 - $63.11
- Powertrax®Differential Pinion ShaftBuick Estate with Replacement Part for No-Slip Traction System (p# 9207752605, 9207762605, 9207762805, 9207762885) 1981, Differential Pinion Shaft by Powertrax®. These hardened cross shafts are specifically designed for use with your...High quality at an affordable priceExpertly made from premium materials$15.43
- Powertrax®Lock Right Locker Active SpacerBuick Estate with Replacement Part for Lock Right Unit (p# 1920-LR, 1921-LR, 1940-LR) 1981, Lock Right Locker Active Spacer by Powertrax®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for...High quality at an affordable priceExpertly made from premium materials$37.09
- Powertrax®Lock Right Locker CouplerBuick Estate 1981, Lock Right Locker Coupler by Powertrax®. 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...High quality at an affordable priceExpertly made from premium materials$79.49
- Powertrax®Lock Right Locker DriverBuick Estate 1981, Lock Right Locker Driver by Powertrax®. 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...High quality at an affordable priceExpertly made from premium materials$79.49 - $83.33
- Powertrax®Lock Right Locker PinBuick Estate 1981, Lock Right Locker Pin by Powertrax®. 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...High quality at an affordable priceExpertly made from premium materials$0.94
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