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

Hurst Limited-Slip 30 Spline Differential GM 8.875 Inch (12-bolt), truck 02-124

Differential, Posi Performance, Limited Slip, 30-Spline, 2.76-3.42 Gear Ratios, GM, 12-Bolt, Each

Part Number: HUU-02-124

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Yukon Gear & Axle Differential Pinion Yokes YY F880601

Yoke, Differential Location, 30-spline, Steel, Spicer 1330 U-joint Style, Rear, Ford 8.8 in., Ford 8.8 in. IRS

Part Number: YGA-41049

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Hays Billet Steel 168-Tooth Flywheel 10-245

Flywheel, Steel, 168-Tooth, 40 lb., External Engine Balance, Chevy, Big Block, 454, Each

Part Number: HAY-10-245

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 20, 2026 if ordered today

QuickTime Motor Plates RM-8005

Motor Plate, Steel, .125 in., Ford, 429/460, Manual Trans, w/176/184 Tooth Flywheel. Each

Part Number: QTI-RM-8005

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Currie 9 in. Crate Rear End Assemblies for 1970-1981 CAMARO, FIREBIRD - CR-GF341TWAB

Crate Axle, 70-81 GM Camaro/F-Body Centurion 9-Inch, Black PC, 31-Spline, 4.11 Ratio, Currie Twin Track, Wilwood 11" Dynapro Black Calipers

Part Number: CUR-CR-GF341TWAB

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Currie 9 in. Crate Rear End Assemblies for 1970-1981 CAMARO, FIREBIRD - CR-GF337TWAB

Crate Axle, 70-81 GM Camaro/F-Body Centurion 9-Inch, Black PC, 31-Spline, 3.70 Ratio, Currie Twin Track, Wilwood 11" Dynapro Black Calipers

Part Number: CUR-CR-GF337TWAB

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 29, 2026 if ordered today

Yukon Gear & Axle Differential Clutch Sets YPKD44-PC-T/L

Differential Carrier Clutch, Clutch Pack, Steel, Set

Part Number: YGA-16153

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

QuickTime Bellhousings RM-6072

Bellhousing, Quick Time, SFI Approved, Chrysler, Small Block, to Mopar New Process Transmission, Kit

Part Number: QTI-RM-6072

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Apr 17, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 17, 2026 if ordered today

Auburn Gear Grip-N-Loc 30 Spline Differential Dana 44 546083

Auburn Gear Grip-N-Loc 30 Spline Differential Dana 44 546083

Differential, Auburn, Grip-N-Loc, Limited Slip, 30-Spline, Chevrolet, Dodge, Ford, Jeep, Dana 44, Each

Part Number: AUB-546083

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Motive Gear Ring and Pinion Sets GM10-308 GM 8.5/8.6 in. 3.08 Gears

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.5 in/8.6 in., Set

Part Number: MGR-GM10-308

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Hays Super Truck Clutch Kits 90-103

Clutch Kit, Organic, 1 1/8 in. Diameter Shaft, 10-Spline, 12 in. Diameter Disc, Chevy, GMC, Pickup, SUV, Kit

Part Number: HAY-90-103

3.38 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Spicer Drivetrain Products Differential Pinion Nuts 30271

Pinion Nut, Steel, 7/8 in.-14 Thread, Each

Part Number: SDH-30271

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

TCI Master Racing Overhaul Kits 529500

Automatic Transmission Rebuild Kit, Master Racing, Ford, Lincoln, Mercury, C-4, Kit

Part Number: TCI-529500

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Motive Gear Differential Bearing Kits 706016XR

Differential Carrier Bearing, Races Included, Koyo Bearing, Steel, Set

Part Number: MGR-706016XR

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Yukon Gear & Axle Ring Gear Bolts YSPBLT-007

Ring Gear Bolt, Hex Head, Steel, Natural, 1/2-20 in. Thread, Dana 60, Dana 70, Dana 70-HD, Dana 70-U, Each

Part Number: YGA-33037

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

QuickTime Bellhousings RM-8070

Bellhousing, Quick Time, SFI Approved, Oldsmobile, Pontiac, to Manual Transmission, Kit

Part Number: QTI-RM-8070

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

ACDelco Gold Universal Joint Straps 19470452

Universal Joint Strap Kit, Steel, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Pair

Part Number: ADO-45U0505

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Spicer Drivetrain Products Differential Cover Kits 10023535

Differential Covers, Differential Cover Kits, Dana 35, 10-bolt Cover, Nodular Iron, Natural, Bolts, Kit

Part Number: SDH-10023535

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Eaton Master Differential Installation Kits K-D30-F

Ring and Pinion Installation Kit, Front, Dana 30, 10-Bolt, Jeep, Kit

Part Number: ETN-K-D30-F

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Engine Works SFI-Approved 168-Tooth Flexplate 454168E

Flexplate, 168-Tooth, External Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevrolet, V8, Each

Part Number: EW1-454168E

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Warn Service Kits 11967

Hub Service Kit, Standard, Chevy, GMC, Dodge, Ford, International, Jeep, Kit

Part Number: WRN-11967

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Advance Adapters Pilot Bushings 716193

Pilot Bushing, Custom Extended Pilot Bushing, Solid, Bronze, Chevy to Ford transmission, Each

Part Number: ADD-716193

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Crown Automotive Spider Gear Kits J8120326

Spider Gears, Side Gears, Cross Shaft Pin, Thrust Washers, Locker Style, 29 Spline, Rear, AMC Model 20, Kit

Part Number: CWA-J8120326

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Jun 22, 2026 if ordered today

...Loading

Estimated Ship Date: Jun 22, 2026 if ordered today

Spicer Drivetrain Products 30 Spline Differential Carrier Cases Dana 44 706025X

Differential Carrier, Open, Dana 44, 30-Spline, 3.92 and numerically higher ratio, Each

Part Number: SDH-706025X

3.4 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Quarter Master Flywheel Bolt Kits 505001

Flywheel Bolts, High Performance, Chromoly, Black Oxide, 12-point, 7/16-20 x 0.875 in., Chevy, Ford, Dodge, Set of 6

Part Number: QTM-505001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow