1978 Ford Thunderbird Differentials

Essential 1978 Ford Thunderbird Differentials

Dorman – Differential Pinion Yoke Assembly (Part No.697-532)

Differential Pinion Yoke Assembly

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$176.99
Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:
  • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
  • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
  • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
  • Validated fit – this differential end yoke has been tested to confirm accurate fit
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Yukon Gear – Outer Oil Slinger For Ford 7.5", 8.8", 9", 10.25" (Part No.33022)

Outer Oil Slinger For Ford 7.5", 8.8", 9", 10.25"

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$8.99
Replacement outer oil slinger for Ford 7.5″, 8.8″, 9″, 10.25″, Nissan Titan rear, Dana 44 Rubicon & 44 JK non-Rubicon.

Product Features:
  • Outer oil slinger for Ford 10.25″, 7.5″, 8.8″ and 9″ also Jeep JK and Nissan Titan rear
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Motive Gear – Differential Crush Sleeve (Part No.B7A4662A)

Differential Crush Sleeve

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$2.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
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National – Bearings (Part No.31594)

Bearings

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$29.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Yukon Gear – Trac Loc Ring Gear Bolt Washer For 8" And 9" Ford (Part No.33245)

Trac Loc Ring Gear Bolt Washer For 8" And 9" Ford

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$3.99
Trac Loc ring gear bolt washer for 8″ and 9″ Ford.

Product Features:
  • Ring gear bolt for Ford 8″ and 9″
  • For Trac Loc positraction applications only
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Motive Gear – Differential Mini Spool (Part No.MS9-31)

Differential Mini Spool

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$31.99


Product Features:
  • MINI SPOOL 8″ & 9″ 31 SPLN STL 090431
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Motive Gear – Differential Pinion Solid Spacer Kit w/Shims (Part No.SS9)

Differential Pinion Solid Spacer Kit w/Shims

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$45.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
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Powertrax – Lock Right Locker (Part No.1822-LR)

Lock Right Locker

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$371.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Powertrax® = Extreme Traction Systems!
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    Motive Gear – Differential Pinion Shaft (Part No.B7AZ4211A)

    Differential Pinion Shaft

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    $13.59


    Product Features:
    • FORD 9″ CROSS PIN
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    Yukon Gear – Bearing Race Driver (Part No.56023)

    Bearing Race Driver

    from

    $198.99
    Bearing race driver. No return.

    Product Features:
    • Bearing race driver
    • Fits M88010 race
    • All steel construction
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    Yukon Gear – One (1) Specialty Bearing Race To Adapt Small Bearing Journal Into A 3.250" Dropout (Part No.32157)

    One (1) Specialty Bearing Race To Adapt Small Bearing Journal Into A 3.250" Dropout

    from

    $51.99
    One (1) specialty bearing race to adapt small bearing journal into a 3.250″ dropout. This adapter allows the use of a 28 or 31 spline carrier, positraction or locker in a 3.250″ dropout. This is a perfect solution if you are currently running 28 or 31 spline axles but are looking to upgrade to 35 spline later, or are stepping down from 35 spline but don’t want to buy a new dropout.

    Product Features:
    • Carrier race
    • Fits Ford 9″
    • Conversion race to install small bearing carrier into 3.250″ dropout
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    Yukon Gear – Pinion Install Kit For Ford 8.8" Differential (Part No.13041)

    Pinion Install Kit For Ford 8.8" Differential

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    $165.99
    Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, pinion nut, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

    Product Features:
    • Fits 2009 and down Ford 8.8″
    • Included are pinion bearings and races, pinion seal, crush sleeve , complete pinion shim kit, and marking compound with brush.
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    Motive Gear – Differential Bearing Kit – Koyo (Part No.R9R)

    Differential Bearing Kit - Koyo

    from

    $105.99
    Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv

    Product Features:
    • KIT BRG.&SEAL FORD 9
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    Motive Gear – Differential Ring and Pinion (Part No.F8.8-410A)

    Differential Ring and Pinion

    from

    $179.99


    Product Features:
    • FRD 10BL 8.8 R/P 4.10A MG
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    Yukon Gear – Trac Loc Spring For Ford 7.5" (Part No.33514)

    Trac Loc Spring For Ford 7.5"

    from

    $67.99
    The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 in

    Product Features:
    • Trac Loc spring
    • Fits Ford 7.5″
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    Yukon Gear – Tracloc For Ford 9" Wtih 28 Spline Axles – Street Design (Part No.26008)

    Tracloc For Ford 9" Wtih 28 Spline Axles - Street Design

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    $819.99
    The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Trac Loc uses a nodular case, billet side hat, and forged internals for higher strength than stock Trac-Locs. The units use composite clutches for high performance and long life. All units are Rebuildable. Yukon offers a one year warranty against manufacturing defects.

    Product Features:
    • Fits Ford 9″ with 28 spline axles
    • Trac Loc positraction
    • Clutch style positraction
    • Street design
    • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
    • Fully rebuildable
    • Assembled in the USA
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    USA Standard Gear – Spartan Locker For Ford 8.8", 31 Spline, Includes Heavy-Duty Cross Pin Shaft (Part No.17005)

    Spartan Locker For Ford 8.8", 31 Spline, Includes Heavy-Duty Cross Pin Shaft

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    $616.99
    The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. Give your vehicle great traction and save some cash. Choose a Spartan Locker for better traction. The Spartan locker by USA standard gear is a mechanical locker that replaces the spiders in a standard case. The Spartan locker’s design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap! The couplers and drivers are made from 9310 steel, for added strength. Each Spartan locker carries a one year warranty against defect.

    Product Features:
    • Fits Ford 8.8″ with 31 spline axles and 7/8″ cross pin shaft
    • Made from 9310 steel for added strength
    • Replaces the spiders in a standard carrier case
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    Yukon Gear – Pilot Bearing For Ford 9" (Part No.18042)

    Pilot Bearing For Ford 9"

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    $42.99
    8.6″ GM 99-08 PINION Bearing & SEAL KIT .

    Product Features:
    • Pilot bearing
    • Fits Ford 9″
    • 0.656″ thick
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    Yukon Gear – Pinion Gear For 8" And 9" Ford (Part No.16160)

    Pinion Gear For 8" And 9" Ford

    from

    $23.99
    Pinion gear for 8″ and 9″ Ford.

    Product Features:
    • Pinion gear
    • Fits Ford 8″ and 9″
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    Powertrax – Grip LOK Traction System (Part No.LK109028)

    Grip LOK Traction System

    from

    $668.99
    For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
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    Yukon Gear – Extra HD 3.062" Nodular Iron Dropout For Ford 9" (Part No.32099)

    Extra HD 3.062" Nodular Iron Dropout For Ford 9"

    from

    $615.99
    Yukon Extra HD 3.062″ nodular Iron dropout for Ford 9″. Yukon nodular iron dropouts feature a 5/8″ cap bolt and forged caps for maximum strength. Rated up to 1200HP!

    Product Features:
    • Fits Ford 9″
    • 3.062″ carrier race diameter
    • Nodular iron for added strength
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    National – Bearings (Part No.25590)

    Bearings

    from

    $30.99
    National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

    Product Features:
    • Premium bearing design matches OEM specifications
    • Precision manufactured using premium-grade steel for outstanding durability and performance
    • Crowned raceways and rollers to ensure even load distribution for maximum life
    • Industry leading coverage
    • Professional technicians know they can depend on National
    See More

    Motive Gear – Differential Pinion Shim Kit (Part No.1100)

    Differential Pinion Shim Kit

    from

    $7.49
    High-quality Differential Component Shim

    Product Features:
    • SHIM KIT FITS-8.25-F7.5-AMC20-GM0
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    Yukon Gear – Dropout Housing Stud For Ford 8" & 9" (Part No.32338)

    Dropout Housing Stud For Ford 8" & 9"

    from

    $7.99
    Product Features:
    • Housing stud
    • Fits Ford 8″ and 9″
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    Yukon Gear – Pinion Gear And Thrust Washer (0.750" Shaft) For 8.8" Ford (Part No.33297)

    Pinion Gear And Thrust Washer (0.750" Shaft) For 8.8" Ford

    from

    $8.99
    Pinion gear thrust washer (0.750″ shaft) for 8.8″ Ford.

    Product Features:
    • Pinion gear thrust washer
    • Fits Ford 8.8″
    • 0.750″ I.D.
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    Yukon Gear – Cross Pin Shaft (0.875") For ’86 And Newer 8.8" Ford (Part No.33331)

    Cross Pin Shaft (0.875") For '86 And Newer 8.8" Ford

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    $52.99
    Cross pin shaft (0.875″) for ’86 and newer 8.8″ Ford.

    Product Features:
    • Cross pin shaft for Ford 8.8″
    • 0.875″ diameter
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    USA Standard Gear – Master Overhaul Kit for the Ford 9" LM603011 Differential with Daytona Pinion Support (Part No.37038)

    Master Overhaul Kit for the Ford 9" LM603011 Differential with Daytona Pinion Support

    from

    $274.99
    USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

    Product Features:
    • Fits Ford 9″ with LM603011 carrier races and Daytona pinion support
    • Uses Koyo bearings and races
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, pilot bearing, thread locker, marking compound with brush and gasket.
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    USA Standard Gear – Master Overhaul Kit for ’09 & Down Ford 8.8" Differential. (Part No.37030)

    Master Overhaul Kit for '09 & Down Ford 8.8" Differential.

    from

    $201.99
    USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

    Product Features:
    • Fits 2009 and down Ford 8.8″
    • Uses Koyo bearings and races
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket.
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    1978 Ford Thunderbird Differentials

    Maybe you’re in the middle of a full rebuild of that 1978 Ford Thunderbird. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 295 different Differentials in our inventory ranging from $1.99 to $1,211.99. That means you can find the exact parts or products you need to keep that 1978 Ford Thunderbird running smoothly.

    Differentials are only as good as their brand. We stock 10 different brands to make sure you have plenty of trusted parts to choose from for your 1978 Ford Thunderbird. National, Yukon Gear, and Dorman are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

    We know you’ll find the perfect Differentials for your 1978 Ford Thunderbird, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 174 reviews in this category, some of the top rated parts include Differential Ring And Pinion with 3.0 stars and No-Slip Traction System with 5.0 stars.

    So if you’re in the market for aftermarket Differentials to keep your 1978 Ford Thunderbird rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

    Differentials Brands To Make Your 1978 Ford Thunderbird Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 Ford Thunderbird demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your Thunderbird the best it can be. Be sure to browse some of our top Differentials brands and parts.

    Popular Felpro Differentials

    We carry Felpro parts in our stock across Automatic Transmission Differential Carrier Gaskets categories, plus more. For a 1978 Ford Thunderbird, our most popular Felpro Differentials include:
    Differential Carrier Gasket
    from $8.49
    (9)
    Differential Carrier Gasket
    Automatic Transmission Differential Carrier Gaskets

    Top 1978 Ford Thunderbird Differentials from National

    National products are another trusted brand when it comes to Differentials for your 1978 Ford Thunderbird. Popular National parts include:
    Bearings
    from $17.99
    (36)
    Bearings
    Differential Bearings
    Bearings
    from $6.99
    (6)
    Bearings
    Differential Bearings
    Multi Purpose Seal
    from $15.79
    (3)
    Multi Purpose Seal
    Differential Pinion Seals

    FAQs for 1978 Ford Thunderbird Differentials

    What are the most purchased Differentials for the 1978 Ford Thunderbird?

    Out of 295 Differentials for the 1978 Ford Thunderbird, the most popular in our inventory are:
    3 Qt - Penzoil 80W90 Conventional Gear Oil
    from $44.99
    This product is not rated
    3 Qt – Penzoil 80W90 Conventional Gear Oil
    Differential Oil
    Pinion Crush Sleeves
    from $5.99
    This product is not rated
    Pinion Crush Sleeves
    Differential Crush Sleeves
    Tapered Cup Wheel Bearing Assembly
    from $8.49
    This product is not rated
    Tapered Cup Wheel Bearing Assembly
    Differential Bearings

    What are the top-rated 1978 Ford Thunderbird Differentials?

    Top-rated Differentials for your 1978 Ford Thunderbird based on customer reviews/ratings are:
    Differential Ring And Pinion
    from $344.99
    (2)
    Differential Ring And Pinion
    “Used it to upgrade my alternator on my 04 Jeep Grand Cherokee. It was a direct fit on my 4.7 HO.”
    No-Slip Traction System
    from $551.99
    (1)
    No-Slip Traction System
    “Installed, no issues, works great.”
    Differential Pinion Nut
    from $6.49
    (1)
    Differential Pinion Nut
    “If a pinion nut is ever removed from the pinion shaft, it is recommended NOT to reuse it. Replace it with a BRAND NEW nut, even if the old nut is rel”