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

Wilwood Replacement Cone Bearings 370-0879

Wilwood Replacement Cone Bearings 370-0879

Wheel Bearing, Inner, Dynalite Pro Series, Mopar, A Body, Each

Part Number: WIL-370-0879

5.0 out of 5 stars ( 1 )

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Eaton Posi Performance 30 Spline Differential GM 10.5 Inch (14-bolt) 19610-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 10.5 in., Each

Part Number: ETN-19610-010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

TCI Full Manual Valve Bodies 221570

Valve Body, Full Manual, Reverse Shift Pattern, Billet Aluminum, Hard Anodized, Chevy, TH400, Each

Part Number: TCI-221570

4.2 out of 5 stars ( 5 )

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Motive Gear Performance Ring and Pinion Sets G885430 GM 8.5/8.6 in. 4.30 Gears

Gear, Ring and Pinion, 4.30:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885430

5.0 out of 5 stars ( 3 )

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Lokar Midnight Series Flexible Braided Stainless Transmission Dipsticks XTD-30C4FM

Transmission Dipstick, Braided Stainless Steel Housing, Black Handle, Ford, C-4, Each

Part Number: LOK-XTD-30C4FM

4.6 out of 5 stars ( 5 )

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Centerforce Dual Friction Clutch Discs DF384611

Clutch Disc, Dual Friction, 1.125 in.- 26-Spline, 10.4 in. Disc, Ford, 4.6, 5.0L, Each

Part Number: CTF-DF384611

3.67 out of 5 stars ( 3 )

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Richmond Gear Ring and Pinion Sets 69-0052-1 Dana 60 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, Dana 60, Set

Part Number: RMG-6900521

5.0 out of 5 stars ( 1 )

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ATP Detent Cables Y-100

Detent Cable, Black, 40.0 in. Length, for TH350 Transmission, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: ATP-Y100

3.86 out of 5 stars ( 14 )

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Crown Automotive Manual Locking Hubs 400502

Locking Hubs, Manual, 27-spline, 6 Bolts, Chrome Steel Housing, Black Plastic Dial, Jeep, Set

Part Number: CWA-400502

5.0 out of 5 stars ( 3 )

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Mr. Gasket Chrome 10 Bolt GM 8.5 Inch Differential Cover 9891

Differential Cover, Steel, Chrome, GM, 8.5 in., 10-Bolt, Kit

Part Number: MRG-9891

4.17 out of 5 stars ( 6 )

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Scat 157-Tooth Flexplate FP-302-157-SFI

SFI, S/B FORD 157 TOOTH EXTERNAL FORD

Part Number: SCA-FP302157SFI

4.57 out of 5 stars ( 7 )

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PRW Gold Series 153-Tooth Flexplate 1835002

Flexplate, Gold Series, 153-Tooth, Internal Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, TH350, Chevy, Small Block, GM V6, Each

Part Number: PQX-1835002

3.0 out of 5 stars ( 2 )

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WIX Filters Transmission Filters WIX-58897

Transmission Filter, Replacement, Each

Part Number: WIX-58897

4.81 out of 5 stars ( 26 )

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RAM Billet Steel 130-Tooth Flywheel 1503LW

Flywheel, Billet Steel, 130-Tooth, Internal Engine Balance, 22.000 lbs., SFI 1.1, Dodge, Chrysler, Dodge, Plymouth, V8, Each

Part Number: RAM-1503LW

Not Yet Reviewed

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Yukon Gear & Axle Spider Gear Kits YPKGM12-S-30

Spider Gear Kit, Open Differential, GM 8.875 in., 30 Spline, Kit

Part Number: YGA-16043

5.0 out of 5 stars ( 5 )

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Richmond Gear EXCel Ring and Pinion Sets F9456 Ford 9 in. 4.56 Gears

Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, Ford, 9 in., Set

Part Number: RMG-F9456

5.0 out of 5 stars ( 1 )

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ARB Air Locker 31 Spline Differential Ford 9 Inch RD119

Differential Carrier, Air Locker, Nodular Iron, Rear, Ford 9 in., Kit

Part Number: ARB-RD119

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Yukon Gear & Axle Mighty Axle Seals YMS5131

Axle Seal, Mighty, Disco Replacement Seal, Front Inner, Dana 44, Dana 60, Each

Part Number: YGA-30122

4.0 out of 5 stars ( 2 )

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QuickTime Bellhousings RM-6021SFI

Bellhousing, Quick Time, Steel, Gold Iridited, Chevy, V6-V8, to Manual Transmission, Kit

Part Number: QTI-RM-6021-SFI

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Timken Axle Bearing Races 382S

Differential Carrier Bearing Race, Rear, 3.812 in Diameter, Chevy, GMC, Dodge, Ford, International, Jeep, Each

Part Number: TMK-382S

5.0 out of 5 stars ( 1 )

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Spicer Drivetrain Products Differential Inner Gear Kits 706027X

Spider Gear Kit, Open Differential, Dana 44, 30 Spline, Kit

Part Number: SDH-706027X

5.0 out of 5 stars ( 4 )

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ATI SFI 139-Tooth Flexplate ATI915545

Flexplate, 139-tooth, Internal Balance, Steel, SFI-approved, Chevy, GMC, Each

Part Number: ATI-915545

Not Yet Reviewed

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Zoom MU Series Clutches MU5435-1

Clutch Kit, Organic, 1 1/4 in.- 10-Spline, 13 in. Disc, International, 304, 345, 392, Kit

Part Number: ZZZ-MU5435-1

5.0 out of 5 stars ( 1 )

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Yukon Gear & Axle Dura Grip Positraction Carriers Ford 9 Inch YDGF9-31-SM

Dura Grip Positraction Carrier, Traction-Loc, Ford 9 in., 31 Spline, Smooth Engagement, Each

Part Number: YGA-26010

5.0 out of 5 stars ( 1 )

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Rugged Ridge Heavy-Duty Clutch Link Kits for 1972-1983 CJ5, 1976-1986 CJ7, 1981-1985 SCRAMBLER - 16919.3

Clutch Link Kit, Heavy Duty, up to 3 in. Lift, Jeep, Kit

Part Number: RGG-1691930

4.8 out of 5 stars ( 5 )

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