1981 Buick Century Differentials
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Spicer®Differential Lock PistonDifferential Lock Piston by Spicer®. Spicer parts are designed, engineered, and manufactured to meet or exceed OE requirements because they are OE parts, ensuring a perfect fit with company full line of industry-leading axles. That’s...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$7.74 - $18.97 - Spicer®Differential Lock Repair KitDifferential Lock Repair Kit by Spicer®. Spicer parts are designed, engineered, and manufactured to meet or exceed OE requirements because they are OE parts, ensuring a perfect fit with company full line of industry-leading axles....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$31.06 - $150.96
- Spicer®Differential Lock SleeveDifferential Lock Sleeve by Spicer®. Spicer parts are designed, engineered, and manufactured to meet or exceed OE requirements because they are OE parts, ensuring a perfect fit with company full line of industry-leading axles. That’s...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.28
- Spicer®Differential Lock SpringDifferential Lock Spring by Spicer®. Spicer parts are designed, engineered, and manufactured to meet or exceed OE requirements because they are OE parts, ensuring a perfect fit with company full line of industry-leading axles. That’s...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$7.03 - $9.69
- Spicer®Differential Standard Bearing KitDifferential Standard Bearing Kit by Spicer®. Remember - not all bearings are created equal. Choose Spicer axle bearing kits for just the right repair. Each kit comes complete with exactly the right combination of parts you need to get...Highest quality mix of bearings, cups, and cones for performance you can count onPremium oil seals to keep lube in and dust and road grime out$12.65 - $441.20
- Yukon Gear & Axle®Clamshell Adapter WasherClamshell Adapter Washer by Yukon Gear & Axle®. For HD Adapter Clamshell and Puller Tool. 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$95.89 - $179.89
- 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
- Powertrax®Lock Right LockerBuick Century 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$439.96 - $490.05
- Auburn Gear®ECTED Max™ Rear Limited Slip DifferentialBuick Century 3.8L / 4.3L 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...Expertly crafted from superior materialsProvides exceptional reliability$1,575.77
- Powertrax®Grip LS Traction SystemBuick Century with 28 Spline, 3.23 and Up Gear Ratio, GM 7.5" Series Axle / GM 7.625" Series Axle 1981, Grip LS Traction System by Powertrax®. Designed utilizing the latest technology, this product features premium quality and will...Comes Fully AssembledCarbon Fiber and Steel Friction Plate Technology$498.63
- Powertrax®No-Slip Traction SystemBuick Century with 26 Spline, Open Differential, 10 Bolt, GM 7.5" Series Axle 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...Extreme Traction PerformanceEnables a 2 Wheel Drive to outperform a 4 Wheel Drive in poor traction conditions$563.56
- Motive Gear®Rear A-Line Ring and Pinion Gear SetBuick Century with 3.23 and Up Gear Ratio, 10 Bolt, GM 7.5" Series Axle 1981, Rear A-Line Ring and Pinion Gear Set by Motive Gear®. Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers...Quiet operationComputer controlled heat treatment$192.44 - $215.79
- Strange®Motive Gear Performance™ Ring and Pinion Gear SetBuick Century 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$416.48 - $453.10
- ACDelco®Gold™ Differential Pinion RaceBuick Century with 7.5" Ring Gear 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.61Save: $1.44 (15%)$8.17
- ACDelco®Professional™ Rear Outer Differential Pinion BearingBuick Century with 7.5" Ring Gear 1981, Professional™ Rear Outer Differential Pinion Bearing by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$12.76Save: $1.92 (15%)$10.84
- Richmond®Differential Mega Bearing KitBuick Century with GM 7.5" Series Axle / with GM 7.625" Series Axle 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...Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability$196.84
- Alloy USA®Rear Differential Master Overhaul KitBuick Century with GM 8.5" Series Axle 1981, 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 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$224.99
- Bower®Inch and J Series Axle Differential Bearing CupBuick Century 3.8L / 4.3L / 5.7L 1981, Inch and J Series Axle Differential Bearing Cup by Bower®. For Tapered Roller Bearing. 2.891" Outside Diameter x 0.6537" Length x 0.03" Radius. OE Replacement. Keep your axle assembly in tip-top...Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance$9.55
- Ratech®Basic Series Differential KitBuick Century with 7.5" Ring Gear, GM Series Axle 1981, Basic Series Differential Kit by Ratech®. 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$17.04
- Ratech®Deluxe Series Differential KitBuick Century with 8.5" Ring Gear, GM Series Axle 1981, Deluxe Series Differential Kit by Ratech®. 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$134.69
- Ratech®Differential Bearing KitBuick Century with GM Series Axle 1981, Differential Bearing Kit by Ratech®. Designed utilizing the latest technology, this product by Ratech features premium quality and will perform better than advertised. Perfect for your vehicle and...OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service$28.99 - $66.35
- Ratech®Differential Installation KitBuick Century with GM Series Axle 1981, Differential Installation Kit by Ratech®. 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$41.90 - $44.13
- Ratech®Differential Pinion BearingBuick Century with GM Series Axle 1981, Differential Pinion Bearing by Ratech®. 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$14.77 - $23.74
- Ratech®Differential Pinion SealBuick Century with 8.5" Ring Gear, GM Series Axle 1981, Differential Pinion Seal by Ratech®. 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$5.63
- Transtar Industries®Differential Rebuild Bearing KitBuick Century 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
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