1978 Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Richmond Gear EXCel Ring and Pinion Sets D44488RUB Dana 44 4.88 Gears

Ring and Pinion Gears, Thick Ring Gear, 4.88:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: RMG-D44488RUB

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Motive Gear Ten Factory Axle Shafts for 1978-1979 F-250, 1979 F-350 - MG20664B

Axle Shaft, Direct Fit, 4340 Chromoly, 35-Spline, 34.560 in. Length, Ford, Each

Part Number: MGR-MG20664B

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Yukon Gear & Axle 10 Bolt Dana 60 Differential Cover YP C2-D60-STD

Differential Cover, 10-bolt, Aluminum, Polished, Dana 60, Reverse Rotation Only, Each

Part Number: YGA-32024

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dorman Ring and Pinion Installation Kits 697-106

Ring and Pinion Bearing Installation Kit

Part Number: RNB-697-106

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Dorman Ring and Pinion Sets 697-309 Chrysler 9.25 in. 3.92 Gears

Gear, Ring and Pinion, 3.92:1 Ratio, Chrysler 9.25 in., Set

Part Number: RNB-697-309

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Yukon Gear & Axle 1541H Alloy Axles for 1977-1983 CJ5, 1977-1986 CJ7, 1974 SCOUT II - YA D36617

Yukon 1541H outer stub axle for '86 and older Dana 30 with a length of 8.72 inches

Part Number: YGA-21077

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

USA Standard Gear ZG Series Ring and Pinion Sets ZG F8-355 Ford 8 in. 3.55 Gears

USA Standard Ring & Pinion gear set for Ford 8" in a 3.55 ratio

Part Number: SPZ-36117

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

RAM 7.25 Stock Car Series Clutch Discs 8951-3

RAM 7.25 Stock Car Series Clutch Discs 8951-3

Clutch Discs, Metallic, 1 1/8 in. Diameter Shaft, 10-Spline, 7.25 in. Diameter Disc, Circle Track, Set of 3

Part Number: RAM-8951-3

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

RAM Premium Replacement Clutch Kits 88793C

Clutch Kit, Premium Replacement, Ceramic,12 in., Diaphragm Pressure Plate, Chevrolet, GMC, Kit

Part Number: RAM-88793C

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

RAM Premium Replacement Clutch Kits 88777

Clutch Kit, Organic, 1 1/16 in.- 10-Spline, 11 in. Disc, Ford, Pickup, SUV, Van, 4.9, 5.0, 5.8L, Kit

Part Number: RAM-88777

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

USA Standard Gear Axle Shafts for 1978-1979 BRONCO, 1976-1979 F-150 - ZA W39143

4340 Chromoly Axle, Bronco & F150 LH inner, D44, 30spl, uses 5-760X u/joint

Part Number: SPZ-35085

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Centerforce I Clutch Kits for 1975-1987 LAND CRUISER - CF043518

Clutch Kit, Organic, 1 1/16 in. Diameter Shaft, 10-Spline, 10.813 in. Diameter Disc, Toyota, Kit

Part Number: CTF-CF043518

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Centerforce Dual Friction Clutch Kits DF203024

Clutch Kit, Dual Friction, 1 in. Diameter Shaft, 23-Spline, 8.5 in. Diameter Disc, Ford, Mercury, Kit

Part Number: CTF-DF203024

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

McLeod 500 Series Clutch Discs 260520

Clutch Disc, 500-Series, Organic/Ceramic, 1 in.- 23 Spline, 10.5 in. Diameter, Each

Part Number: MCL-260520

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

RAM HDX Clutch Kits 88777HDT

HDX clutch set Ford truck 11 x 1 1/8-26

Part Number: RAM-88777HDT

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

American Powertrain Science Friction 168-Tooth Flywheel FWCV-10003

Flywheel, Billet Steel, 168-Tooth, Chevy, 7.4, 8.1L, 2-Piece Seal, Each

Part Number: AWR-FWCV10003

1.0 out of 5 stars ( 1 )

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

American Powertrain Science Friction 164-Tooth Flywheel FWAM-10003

Flywheel, Custom Order, Billet Steel, 164-tooth, External Bal., Specify AMC 304/360 and Crank Register, Each

Part Number: AWR-FWAM10003

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Call to Order

Yukon Gear & Axle Yokes YY C4137976

Yukon yoke for Chrysler 7.25" and 8.25" with a 7290 U/Joint size.

Part Number: YGA-41005

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gears 13417

D50; D60; D70 HD NODULAR IRON YUKON COVER; PURPLE **LIMITED EDITION**

Part Number: YGA-13417

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG F8.8-308 Ford 8.8 in. 3.08 Gears

Gear, Ring and Pinion, 3.08:1 Ratio, 1.625 in. Pinion, 8.800 in. Ring Gear, Ford 8.8 in., Set

Part Number: YGA-24349

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Sets F75456 Ford 7.5 in. 4.56 Gears

Ring and Pinion Kit

Part Number: RMG-F75456

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Motive Gear Ring and Pinion Sets D44-489 Dana 44 4.89 Gears

Gear, Ring and Pinion, 4.89:1 Ratio, Dana 44, Set

Part Number: MGR-D44-489

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Yukon Gear & Axle Master Overhaul Kits for 1986-1995 4RUNNER, 1977-1995 PICKUP, 1995-2006 TACOMA - YK T7.5-4CYL

Installation Kit, Master Overhaul, Toyota 7.5 in. IFS, Kit

Part Number: YGA-14114

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Yukon Gear & Axle Differential Clutch Sets YPKC8.75-PC

Differential Carrier Clutch, Steel Clutch Pack, Power-Lok, Am General, AMC, Chevy, Chrysler, Ford, Jeep, Set

Part Number: YGA-16148

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Motive Gear Performance Ring and Pinion Sets F890514 Ford 9 in. 5.14 Gears

Gear, Ring and Pinion, 5.14:1 Ratio, Ford, 9 in., Set

Part Number: MGR-F890514

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today