1981 Buick Estate Differentials
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Richmond®Excel™ Differential Carrier Gear KitBuick Estate 1981, Excel™ Differential Carrier Gear Kit 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$116.81 - $149.32 - DT Components®Rear Differential BearingBuick Estate 1981, Rear Differential Bearing by DT Components®. Designed utilizing the latest technology, this product by DT Components features premium quality and will perform better than advertised. Perfect for your vehicle and...Expertly crafted from premium materialsDesigned to match rigorous quality standards$17.38 - $17.39
- DT Components®Rear Differential Bearing RaceBuick Estate 1981, Rear Differential Bearing Race by DT Components®. Designed utilizing the latest technology, this product by DT Components features premium quality and will perform better than advertised. Perfect for your vehicle and...Direct-fit OE-quality replacement for your factory partHelps restore the proper functionality of your vehicle$8.72 - $11.68
- AllStar Performance®Ring and Pinion Installation Bearing KitBuick Estate 1981, Ring and Pinion Installation Bearing Kit by AllStar Performance®. Drive with confidence and have the edge with AllStar Performance. With such a ground-breaking design and elaborate development, you’ll never run into...Precise manufacturing and high-grade materialsExceptional performance at a competitive price$99.99 - $109.99
- AllStar Performance®Ring and Pinion Installation Shim KitBuick Estate with 10 Bolt 1981, Ring and Pinion Installation Shim Kit by AllStar Performance®. Drive with confidence and have the edge with AllStar Performance. With such a ground-breaking design and elaborate development, you’ll...Precise manufacturing and high-grade materialsExceptional performance at a competitive price$43.99
- Motive Gear®Differential Carrier Gear KitBuick Estate 1981, 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 performance with this premium differential component that...Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best$117.66 - $155.81
- Motive Gear®Differential Gear Installation KitBuick Estate 1981, 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 products undergo rigid quality...Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best$71.86 - $110.97
- Motive Gear®Differential Super Bearing KitBuick Estate with 10 Bolt 1981, 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 with this premium differential...Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best$124.73 - $164.97
- Motive Gear®Rear Differential Master Bearing KitBuick Estate with 10 Bolt 1981, 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...Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best$118.76 - $163.48
- Dorman®Help™ Differential Crush SleevesBuick Estate 1981, Help™ 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$5.37 - $5.47
- Dorman®Help™ Rear Differential Pinion Shaft Lock BoltBuick Estate 1981, Help™ Rear Differential Pinion Shaft Lock Bolt by Dorman®. This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it...Direct replacement - this differential pinion shaft lock bolt matches the fit and function of the factory part on specified years, makes and modelsIdeal solution - this bolt is a reliable replacement for an original part that is missing or has failed due to fatigue$2.48
- Richmond®Differential Bearing KitBuick Estate 1981, 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 premium differential component that delivers...Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability$168.68 - $172.49
- Richmond®Differential Pinion ShaftBuick Estate 1981, 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 differential component that delivers...Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability$17.68 - $48.79
- Richmond®Differential Spool Bearing KitBuick Estate with 10 Bolt, GM 8.5" Series Axle 1981, Differential Spool Bearing Kit by Richmond®. Richmond Gear Differential Installation Kits are a must have when overhauling an axle or replacing a ring & pinion set. Differential...Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability$43.56 - $56.76
- Richmond®Excel™ Differential Pinion ShaftBuick Estate 1981, Excel™ Differential Pinion Shaft 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$18.50 - $24.50
- AllStar Performance®Differential Cross PinBuick Estate 1981, Differential Cross Pin by AllStar Performance®. Drive with confidence and have the edge with AllStar Performance. With such a ground-breaking design and elaborate development, you’ll never run into a better...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$29.99
- AllStar Performance®Ring Gear SpacerBuick Estate with GM 7.5" Series Axle 1981, Ring Gear Spacer by AllStar Performance®. With GM 7.5" Series Axle. Drive with confidence and have the edge with AllStar Performance. With such a ground-breaking design and elaborate...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$45.99
- Motive Gear®Differential Carrier Shim KitBuick Estate 1981, 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$24.66 - $49.04
- Motive Gear®Differential Ring Gear Spacer with BoltsBuick Estate with GM 8.5" Series Axle 1981, Differential Ring Gear Spacer with Bolts 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$64.48
- Yukon Gear & Axle®Zip Locker Air CompressorZip Locker Air Compressor by Yukon Gear & Axle®. Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and...Expertly crafted from premium materialsDesigned to match rigorous quality standards$255.89
- Richmond®Street Gear Ring and Pinion Gear SetStreet 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 and pinions handle...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$385.99
- ARB®Air LockerAir Locker by ARB®. Created to provide 100% traction on demand, without sacrificing any of your vehicle's highway driving performance, ARB Air Lockers employ a 12 volt ARB Air Compressor designed to activate (and deactivate) a solid and...Differential CaseFlange Cap Assembly$12.01 - $2,465.00
- AllStar Performance®SpoolSpool by AllStar Performance®. Replace a troublesome positive traction unit with a high quality Allstar spool. Substantially lighter than conventional carriers, spools deliver equal power to both rear wheels. Ultra-lite steel spools...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$289.99 - $299.99
- Frankland Racing®SpoolSpool 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, it is manufactured to meet...High quality at an affordable priceExpertly made from premium materials$327.00
- Frankland Racing®Superlite™ Driver Side Side BellSuperlite™ Driver Side Side Bell 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...High quality at an affordable priceExpertly made from premium materials$320.72
- PEM®Lightweight Premium Quick Change Gear KitLightweight Premium Quick Change Gear Kit by PEM®. 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...Built to deliver the performance you crave forManufactured from high-strength materials$183.53
- PEM®Standard Quick Change Gear KitStandard Quick Change Gear Kit by PEM®. 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 strength...Built to deliver the performance you crave forManufactured from high-strength materials$95.55
- Yukon Gear & Axle®Ring Gear BoltRing 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 bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much...Expertly crafted from premium materialsDesigned to match rigorous quality standards$8.89
- Yukon Gear & Axle®Ring Gear Bolt Spacer SleeveRing Gear Bolt Spacer Sleeve 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 that delivers the...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$8.89 - $9.89
- Yukon Gear & Axle®Zip Locker Bulkhead Fitting O-RingZip Locker Bulkhead Fitting O-Ring by Yukon Gear & Axle®. The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the...Air operated locker provides on-demand tractionForged case & 4320 internals for added strength$12.89
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