1991 Buick Roadmaster Driveline & Axle Parts
- Dorman®OE Solutions™ Axle ShaftBuick Roadmaster with 8.5" Ring Gear 1991, OE Solutions™ Axle Shaft by Dorman®. All Axle Shafts are constructed of high-quality steel for long-lasting durability. Keep your axle assembly in tip-top shape by swapping out your...Quality tested to ensure trouble free installation, performance, and durabilityDirect replacement for a proper fit every time$144.50
- TRQ®Wheel BearingBuick Roadmaster 1991, Wheel Bearing by TRQ®. Perfect replacement solution for DIY repair enthusiasts, the top-notch wheel bearing from TRQ is just the ticket to fix your vehicle without paying high price. Designed to fit right into the...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$17.81 - $34.87$18.95 - $35.95Save up to 6%
- Richmond®Excel™ Rear Ring and Pinion Gear SetBuick Roadmaster with 10 Bolt 1991, Excel™ Rear Ring and Pinion Gear Set by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and will perform better than advertised. Perfect for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$218.99 - $269.99
- Motive Gear®Standard Open DifferentialBuick Roadmaster 1991, 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 undergo rigid quality...Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best$107.83 - $247.86
- Motive Gear®A-Line Ring and Pinion Gear SetBuick Roadmaster with 10 Bolt 1991, A-Line 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,...Quiet operationComputer controlled heat treatment$190.50 - $226.80
- Auburn Gear®Grip-N-Loc™ Rear DifferentialBuick Roadmaster with GM 7.5" Series Axle / with GM 8.0" Series Axle 1991, Grip-N-Loc™ Rear Differential by Auburn Gear®. Auburn Gear’s most advanced limited slip differential, the Grip-N-Loc™, builds upon exclusive technologies...Upgrades vehicles for safe transfer of increased power/torque across the axleCase material is up to 50% stronger than OE cases$607.83 - $621.25
- Timken®Wheel Bearing and Race SetBuick Roadmaster 1991, Wheel Bearing and Race Set 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$8.72 - $37.57
- Dorman®OE Solutions™ Rear DriveshaftBuick Roadmaster 1991, OE Solutions™ Rear Driveshaft by Dorman®. A highly cost-effective, innovative repair solution, Dorman's Driveshaft Assembly is engineered with a serviceable universal joint. When the u-joint fails, as is common...Dorman-engineered from 100% new materials and rigorously tested for long-lasting durabilityDirect replacement for a proper fit$437.54
- Dorman®OE Solutions™ Differential CoverBuick Roadmaster with 8.5" Ring Gear / with 8.625" Ring Gear 1991, OE Solutions™ Differential Cover by Dorman®. Featuring a corrosion resistant coating to help prevent rusting, Dorman’s Differential Cover is engineered for...Comes with pre-installed magnet in coverConstructed from durable stamped steel$26.72
- Dorman®OE Solutions™ Rear Differential Ring and PinionBuick Roadmaster with 7.5" Ring Gear / 7.6" Ring Gear, 26 Spline Axle Shaft 1991, OE Solutions™ Rear Differential Ring and Pinion by Dorman®. The gears of Dorman’s Differential Ring and Pinion are engineered to effectively transfer...Replacement eliminates driveline grinding and whining soundsDirect replacement for a proper fit$93.34 - $225.62
- Raybestos®Professional Grade™ Front Wheel Bearing and Hub AssemblyBuick Roadmaster 1991, Professional Grade™ Front Wheel Bearing and Hub Assembly by Raybestos®. The latest generation of hub units has a suspension mounting flange machined onto the outer shell with integral raceways, and a brake/wheel...Lifetime lubricationAngular bearing contact for axial stability$125.54
- SKF®Wheel Hub Repair KitBuick Roadmaster 1991, Wheel Hub Repair Kit by SKF®. Designed utilizing the latest technology, this product by SKF features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Excellent replacement for your worn out or faulty partDesigned to restore original performance and reliability$19.44 - $20.80
- Eaton®Detroit Truetrac™ Rear DifferentialBuick Roadmaster with 2.73 and Up Gear Ratio, 10 Bolt, 1.32" Axle Shaft Diameter, GM 8.5" Series Axle 1991, Detroit Truetrac™ Rear Differential by Eaton®. The Detroit Truetrac is a helical-gear style performance differential that...Helical-style pinion gearsLimited-slip operation$629.99
- TRQ®Rear Differential CoverBuick Roadmaster with 8.5" Ring Gear / with 8.625" Ring Gear 1991, Rear Differential Cover by TRQ®. Guaranteed to maintain your vehicle in its best possible condition, this top-notch TRQ differential cover will give you peace of mind to...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$49.87$51.95Save $2.08 (4%)
- SKP®Rear Differential CoverBuick Roadmaster with 8.5" Ring Gear / with 8.625" Ring Gear 1991, Rear Differential Cover by SKP®. Without Drain Plug. Safeguard your differential from potential road hazards with this top-notch differential cover. Made to exact...Excellent replacement for your worn out differential coverDesigned for the ultimate protection against road debris$21.83
- American Axle®Ring and Pinion Gear SetBuick Roadmaster with GM Series Axle 1991, Ring and Pinion Gear Set by American Axle®. AAM offers a complete wheel end component kit to assist you in the installation process. Company use only OE approved quality and tested seals,...Dependable solution for driveline and drivetrain systemsHighly engineered for top quality and operational excellence$230.22 - $346.73
- Richmond®Excel™ Front Mini SpoolBuick Roadmaster with GM 8.5" Series Axle 1991, 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$88.94
- Richmond®Mini SpoolBuick Roadmaster 1991, Mini Spool 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 ultimate...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$88.94 - $106.41
- Richmond®Street Gear Ring and Pinion Gear SetBuick Roadmaster with 10 Bolt 1991, 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...Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability$305.99 - $529.99
- Eaton®Posi™ Rear DifferentialBuick Roadmaster with 2.73 and Up Gear Ratio, 10 Bolt, 1.32" Axle Shaft Diameter, Manual Locking Hubs, GM 8.5" Series Axle 1991, Posi™ Rear Differential by Eaton®. The Eaton Posi limited-slip differential prevents wheel slip before it...Superior rebuildable designRace-bred carbon friction discs$689.99
- Auburn Gear®ECTED Max™ Rear Limited Slip DifferentialBuick Roadmaster with 30 Spline, 2.73 and Up Gear Ratio, 10 Bolt, GM 8.5" Series Axle 1991, 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$1,563.76
- Motive Gear®Performance Ring and Pinion Gear SetBuick Roadmaster with 10 Bolt 1991, Performance Ring and Pinion Gear Set by Motive Gear®. Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle. Gear sets are made from first-run steel, Motive...Central contact patternCNC start to finish$291.99 - $515.99
- Motive Gear®Performance Ring and Pinion Gear SetBuick Roadmaster with 10 Bolt 1991, Performance Ring and Pinion Gear Set by Motive Gear®. Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle. Gear sets are made from first-run steel, Motive...Central contact patternCNC start to finish$291.99 - $515.99
- Motive Gear®Rear Mini SpoolBuick Roadmaster with 26 Spline, Open Differential, 10 Bolt, GM 7.5" Series Axle 1991, Rear Mini Spool 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$95.10
- Motive Gear®Ring and Pinion Gear SetBuick Roadmaster 1991, 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,...Quiet operationComputer controlled heat treatment$195.87 - $434.99
- ATP®Differential Cover KitBuick Roadmaster with 8.5" Ring Gear / with 8.625" Ring Gear 1991, Differential Cover Kit by ATP®. With Gasket and Internal Magnet. Differential covers can become damaged from road debris, corrosion, or bolt/drain plug over tightening....OE quality at an affordable priceOE fit and function$30.83
- TRQ®Wheel BearingBuick Roadmaster 1991, Wheel Bearing by TRQ®. Perfect replacement solution for DIY repair enthusiasts, the top-notch wheel bearing from TRQ is just the ticket to fix your vehicle without paying high price. Designed to fit right into the...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$20.85 - $34.87$21.95 - $35.95Save up to 5%
- iD Select®Greasable Universal JointBuick Roadmaster 1991, Greasable Universal Joint by iD Select®. Location: Rear Shaft All Joints. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to offer the...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$10.61 - $16.35
- Dorman®Rear Cast-iron Drive Shaft Pinion YokeBuick Roadmaster with 30 Tooth, 8.5" Ring Gear / 8.625" Ring Gear 1991, Rear Cast-iron Drive Shaft Pinion Yoke by Dorman®. With Seal and Pinion Nut. Dorman’s Driveshaft Pinion Yoke includes a high-quality seal constructed from a...Engineered from cast iron for long-lasting durabilityComes with all installation components for a trouble-free repair$98.84
- Centric®C-Tek™ Wheel Bearing and Race SetBuick Roadmaster 1991, C-Tek™ Wheel Bearing and Race Set by Centric®. With this product, you can easily repair a wheel hub without breaking the bank. The kit meets all OE standards and specifications for fit, quality, and function and...Matches original equipment parts in quality, configuration and fitmentManufactured under OE and OES standards$6.47 - $11.15
Shop By Service Type
- Wheel Bearing Replacement
- Axle Shaft Bearing Replacement
- Driveshaft Replacement
- Transfer Case Output Shaft Seal Replacement
- Wheel Hub Assembly Replacement
- Universal Joint (U-joint) Replacement
- Pinion Seal Replacement
- Differential Output Seal Replacement
- Center Support Bearing Replacement
- Wheel Seal Replacement
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