1981 Ford Thunderbird Driveline & Axle Parts
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Spicer®SVL™ Rear Ring and Pinion Gear SetFord Thunderbird 1981, SVL™ Rear Ring and Pinion Gear Set by Spicer®. 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. It will meet...High quality at an affordable priceExpertly made from premium materials$197.10 - Eaton®ELocker™ DifferentialFord Thunderbird 1981, ELocker™ Differential by Eaton®. The Eaton ELocker is an electronic, selectable differential designed for drivers that need traction on-demand. ELocker internal gears are net-forged, providing the strength and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$1,417.99
- Spicer®Rear Differential Case Gear KitFord Thunderbird 1981, Rear Differential Case Gear Kit by Spicer®. Get everything you need to rebuild your differential case with genuine Spicer gear kits. Forged to ensure greater strength and increased durability, this is only inner...Phosphate coating on cross shaftStatistically controlled heat treating$96.19
- Spicer®Unloaded Differential CaseFord Thunderbird 1981, Unloaded Differential Case by Spicer®. 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. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$141.57
- GMB®Double Cardan CV Centering YokeFord Thunderbird 1981, Double Cardan CV Centering Yoke by GMB®. Designed utilizing the latest technology, this product by GMB 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$131.45
- Spicer®Axle Shaft SealFord Thunderbird 1981, Axle Shaft Seal by Spicer®. 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. It will meet your needs and deliver...High quality at an affordable priceExpertly made from premium materials$12.10 - $18.05
- Spicer®Rear Axle Shaft RetainerFord Thunderbird with Dana 60 Series Axle 1981, Rear Axle Shaft Retainer by Spicer®. 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....High quality at an affordable priceExpertly made from premium materials$11.36
- Spicer®Differential Crush SleeveFord Thunderbird 1981, Differential Crush 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$4.15
- Spicer®Differential Pinion NutsFord Thunderbird 1981, Differential Pinion Nuts by Spicer®. 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. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$11.10
- Ford Performance®Differential Pinion NutFord Thunderbird 1981, Differential Pinion Nut by Ford Performance®. 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 deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$3.54
- WJB®Double Cardan CV Ball KitFord Thunderbird 1981, Double Cardan CV Ball Kit by WJB®. 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. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$26.04
- Motive Gear®Rear Standard Open DifferentialFord Thunderbird with 10 Bolt, Ford 7.50" Series Axle 1981, Rear 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...Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best$103.76
- Powertrax®Lock Right LockerFord Thunderbird with 28 Spline, Open Differential, Ford 7.50" Series Axle 1981, Lock Right Locker by Powertrax®. With Couplers. Designed utilizing the latest technology, this product features premium quality and will perform better...Brute force devices for rugged applicationsReplacement of differential case not required$488.36
- Motive Gear®Axle ShaftFord Thunderbird with Aftermarket ID 1981, Axle Shaft 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$130.24
- Trans-Dapt®Rear Differential Cover KitFord Thunderbird with 10 Bolt Cover, Ford 7.50" Series Axle 1981, Rear Differential Cover Kit by Trans-Dapt®. Dress up your hot rod with performance components from Trans-Dapt. Blending sleek aesthetics with superior functionality and...$53.15
- USA Standard Gear®Rear Axle ShaftFord Thunderbird 1981, Rear Axle Shaft by USA Standard Gear®. Precision, quality USA Standard Gear axles. USA Standard Gear uses precision manufacturing technologies to provide top quality, competition tough axles. Keep your axle...Designed to help bring your vehicle back in its tip-top conditionFaithful reproduction of the original part in quality, look, and function$177.71
- Yukon Gear & Axle®High Performance Ring and Pinion Gear SetFord Thunderbird 1981, High Performance Ring and Pinion Gear Set by Yukon Gear & Axle®. Yukon Ring and Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the...Smooth finishEasy Set-Up$344.89 - $637.89
- Richmond®Excel™ Rear Differential CarrierFord Thunderbird Empty Case Housing with 10 Bolt, Ford 7.50" Series Axle 1981, Excel™ Rear Differential Carrier by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and will perform...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$97.36
- Richmond®Rear Street Gear Ring and Pinion Gear SetFord Thunderbird with 10 Bolt, Ford 7.50" Series Axle 1981, Rear 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...Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability$364.99
- Auburn Gear®ECTED Max™ Rear Limited Slip DifferentialFord Thunderbird with 28 Spline, 10 Bolt, Independent Front Suspension / Independent Rear Suspension, Ford 8.8" Series Axle 1981, ECTED Max™ Rear Limited Slip Differential by Auburn Gear®. With Selectable Full Locker. The ECTED Max™...Gearing is made from aircraft quality, 9310 heat treated billet steel to make it tough, durable and reliableSwitch the locker on or off "on-the-fly," at moderate road speeds with all 4 wheels on the ground$1,479.90
- Motive Gear®Performance Rear Ring and Pinion Gear SetFord Thunderbird with 10 Bolt, Ford 7.50" Series Axle 1981, Performance Rear 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...Central contact patternCNC start to finish$411.35
- Motive Gear®Performance Rear Ring and Pinion Gear SetFord Thunderbird with 10 Bolt with Ford 7.50" Series Axle 1981, Performance Rear 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...Central contact patternCNC start to finish$411.35
- AllStar Performance®Mini SpoolFord Thunderbird with 10 Bolt, Ford 8.8" Series Axle 1981, Mini Spool by AllStar Performance®. Drive with confidence and have the edge with AllStar Performance. With such a ground-breaking design and elaborate development, you’ll...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$99.99
- GearFX®HS Series Rear GearFord Thunderbird 1981, HS Series Rear Gear by GearFX®. Racing / Pro-Touring Ford Racing 9 Inch Gear. Light Weight Ford Racing Investment Cast Case. With 31 Spline TrueTrac. GearFX's Ford 9 inch HS Rear Gear is built using the Ford...Made using advanced technologies for longer operationEngineered to withstand the most demanding conditions$3,495.95
- GearFX®HS Series Third Member Center SectionFord Thunderbird 1981, HS Series Third Member Center Section by GearFX®. GearFX’s HS Rear Gear is built using the Racing Investment Cast bearing case. This case is ~4.5lbs lighter than the standard Nodular case GearFX use in all of N...1350 Ultra Performance YokeTIMKEN Bearings$3,495.95 - $3,579.95
- GearFX®N Series Rear GearFord Thunderbird 1981, N Series Rear Gear by GearFX®. Ratio: 3.25. Racing / Pro-Touring Ford SVO 9 Inch Gear Genuine Ford Svo Nodular Iron "N" Case. With 31 Spline TrueTrac. GearFX's Ford SVO Nodular 9 Inch rear gear assemblies are...Made using advanced technologies for longer operationEngineered to withstand the most demanding conditions$2,756.90
- GearFX®Rear Gear CarrierFord Thunderbird 1981, Rear Gear Carrier by GearFX®. 3.250" Bearing Rear Gear Iron Case. GearFX has brought back the original Ford SVO 9 Inch Big Bearing (3.250") Nodular Iron case. These cases were the mainstay in NASCAR Racing for...Chrome-moly bearing caps retained by socket head cap screws that exceed aircraft grade 8 specificationsSpot faced stud holes prevent lubricant leaks and damaged mounting surfaces$419.95
- Speedmaster®Heavy-Duty Third Member Differential CenterFord Thunderbird with Ford 9" Series Axle 1981, Heavy-Duty Third Member Differential Center by Speedmaster®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of...Created by professionals to meet your requirementsSuperior longevity and dependability$1,320.00 - $1,745.00
- Speedmaster®Pro™ Heavy-Duty Third Member Differential CenterFord Thunderbird with Ford 9" Series Axle 1981, Pro™ Heavy-Duty Third Member Differential Center by Speedmaster®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme...Created by professionals to meet your requirementsSuperior longevity and dependability$1,380.00 - $1,530.00
- Speedmaster®TorqueWorm™ Heavy-Duty Third Member Differential CenterFord Thunderbird with Ford 9" Series Axle 1981, TorqueWorm™ Heavy-Duty Third Member Differential Center by Speedmaster®. This premium product is the best way to go for those looking for the highest quality replacement that offers...Created by professionals to meet your requirementsSuperior longevity and dependability$1,635.00 - $1,790.00
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1981 Ford Thunderbird Models
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