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

FTI Performance SR Series 3,800 Stall Torque Converter SR7082

GM NON LOCK-UP TH350, TH400 3600-3800 STALL

Part Number: FTI-SR7082

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

Yukon Gear & Axle Ring and Pinion Gears YGK2352

Ring and Pinion Gears and Installation Kit, 8.5" OLDSMOBILE GM 3.90 REAR R&P GEAR/ INSTALL KIT PACKAGE

Part Number: YGA-12594

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

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2257 Ford 8 in. 3.25 Gears

Ring and Pinion Gears and Installation Kit, 8.0" FORD 3.25 REAR R&P GEAR/ INSTALL KIT PACKAGE; FITS STD OPEN CARRIER w/ 1.625" BEARING JOURNAL

Part Number: YGA-12511

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

Hays Twister 3/4 Race 2,800-3,200 Stall Torque Converter 97-2A28Q

Torque Converters, Twister 3/4 Race, 2,800-3,200 rpm Stall Speed Range, 29-spline, 10.00 in. Diameter, FMX/AOD/C3, Bricklin, Ford, Mercury, Each

Part Number: HAY-97-2A28Q

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Hays Street 650 Clutch Conversion Kits 92-1103

Clutch Kit, Street 650 Clutch Conversion Kits, Organic, Lever, 1.125 in. Diameter Shaft, 26-Spline, 11 in. Diameter Disc, Dodge, Plymouth, Kit

Part Number: HAY-92-1103

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Hays Classic Clutch Kits 85-110

Clutch Kit, Street, Organic, 1 1/8 in.-10-Spline, 11 in. Diameter Disc, Buick, Chevy, Pontiac, Kit

Part Number: HAY-85-110

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2187 Chrysler 8.25 in. 3.73 Gears

Ring and Pinion Gears,Yukon Gear & Axle 8.25" CHRYSLER, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 1.62" ID Axle Bearings & Seals

Part Number: YGA-10587

Not Yet Reviewed

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Dorman Driveshafts for 1975-1981 C10, 1975-1978 C15, 1979-1981 C1500 - 976-837

Drive Shaft, Rear Driveshaft Assembly

Part Number: RNB-976-837

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Powertrax Grip LS Traction Systems GM 8.5 Inch LS201028

Differential, Grip LS Traction System, 28-Spline, GM, 8.5 in., Each

Part Number: PWT-LS201028

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle Grizzly Lockers AMC Model 35 YGLM35-4-30

Differential Carrier, Grizzly Locker, Chromium Alloy Steel, 30-spline, Rear, AMC Model 35, 3.56 Ratio and Up

Part Number: YGA-28017

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Auburn Gear Grip-N-Loc 31 Spline Differential Ford 9 Inch 546036

Auburn Gear Grip-N-Loc 31 Spline Differential Ford 9 Inch 546036

Differential, Auburn, Grip-N-Loc, Limited Slip, 31-Spline, Ford, 9 in., Each

Part Number: AUB-546036

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle Grizzly Lockers Dana 30 YGLD30-4-27

Grizzly Locker, Dana 30, 27 Spline, 3.73 Up Ratio, Each

Part Number: YGA-28000

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle Ring and Pinion Gears YG D60R-538R-35

High performance Yukon Ring & Pinion gear set for Dana 60 Reverse rotation in a 5.38 ratio

Part Number: YGA-24312

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Tilton Sport 5.5 Clutch Assemblies 57-1558

Clutch Kits, Sport 5.5, 3-Disc, 5.5 in., Metallic, Steel Flywheel, 750 lb.ft.Torque Capacity, Ford, Small Block, Kit

Part Number: TIL-57-1558

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Summit Racing™ Torque Converter Upgrade Pro Packs 13-0029

Combo, B & M Performance, Torque Converter, 2,800 RPM Stall, Chevy, TH350, Dipstick, Deep Pan, Fluid, Kit

Part Number: CMB-13-0029

Not Yet Reviewed

Cannot be shipped Internationally

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Cannot be shipped Internationally

PEM Racing Ford 9 in. Grand National Rear-End Housings for 1978-1987 REGAL, MONTE CARLO, 1980-1981 CUTLASS - HNM300300 MULTI

Axle Housing, Circle Track, Grand National, Ford 9 in., Fabricated, Mild Steel, 60 in Length, Lower Multi Hole Radius Mounts, Each

Part Number: PE2-S0184

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle Third Member Case Only YP DOF9-5-325

9" Yukon 3.250" aluminum case, HD Drop Out housing, W/LOAD bolt.

Part Number: YGA-32152

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

Dorman Driveshafts 938-238

Drive Shaft, Front Driveshaft Assembly

Part Number: RNB-938-238

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today

South Bend Clutch Stage 3 Drag Race Clutch Kits for 1975-1978 280Z, 1979-1983 280ZX - K06030-SS-DXD-B

Clutch Kit, Stage 3 Drag Race, Single, 1.000 in. - 24-spline, Ceramic Disc, Pressure Plate, for Nissan, 2.8L, Kit

Part Number: SBB-S0856

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

USA Standard Gear Axle Shafts for 1974-1979 WAGONEER - ZA W24142

Dana 44 19/30Spline 4340 FRONT AXLE kit w/ 297X, 74-79 WAGONEER, DRUM BRAKE

Part Number: SPZ-35067

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

RAM 7.25 Stock Car Series Clutch Kits 8655

Clutch Kit, Metallic, 1 1/16 in.- 10-Spline, 7.25 in. Dual Disc, Ford, Circle Track, Kit

Part Number: RAM-8655

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gears YG D60R-354R

High performance Yukon Ring & Pinion gear set for Dana 60 Reverse rotation in a 3.54 ratio

Part Number: YGA-24309

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

Yukon Gear & Axle Grizzly Lockers Ford 8 Inch YGLF8-31

Yukon Grizzly Locker for Ford 8" with 31 spline axles

Part Number: YGA-28007

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

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2259 Ford 8 in. 3.80 Gears

Ring and Pinion Gears and Installation Kit, 8.0" FORD 3.80 REAR R&P GEAR/ INSTALL KIT PACKAGE; FITS STD OPEN CARRIER w/ 1.625" BEARING JOURNAL

Part Number: YGA-12513

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

Richmond Gear Full Spools 81-0935A-P

Spool, Full Size, Aluminum, 35-Spline, Ford 9 in., Each

Part Number: RMG-81-0935A-P

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today