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

USA Standard Gear ZG Series Ring and Pinion Sets ZG D30-488 Dana 30 4.88 Gears

Ring and Pinion Gears, 4.88:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 30, Set

Part Number: SPZ-36027

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

USA Standard Gear ZG Series Ring and Pinion Sets ZG C8.25-411 Chrysler 8.25 in. 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, 27-spline, Standard Ring Gear Rotation, Chrysler 8.25 in., Set

Part Number: SPZ-36011

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

USA Standard Gear ZG Series Ring and Pinion Sets ZG GM8.5-513 GM 8.5/8.6 in. 5.13 Gears

Ring and Pinion Gear, 5.13:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36220

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

USA Standard Gear ZG Series Ring and Pinion Sets ZG GM8.5-538 GM 8.5/8.6 in. 5.38 Gears

Ring and Pinion Gears, 5.38:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: SPZ-36221

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

Yukon Gear & Axle Ring and Pinion Sets YG T7.5-529 Toyota 7.5 in. 5.29 Gears

Ring and Pinion Gears, 5.29:1 Ratio, 23-spline, Standard Rotation, Toyota 7.5 in., Toyota 7.5 in. IFS, Set

Part Number: YGA-24188

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 Yokes YY F900623

Yukon yoke for Ford 9" with 35 spline pinion and a 1350 U/Joint size

Part Number: YGA-41058

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

Spicer Drivetrain Products Front Axle Shafts for 1978-1988 F-350 - 10007814

Chromoly Front Axle Shaft - Outer (Dana 60) RH/LH

Part Number: SDH-10007814

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Dana Spicer Drivetrain Products Differential Covers 10049342

Gray Nodular Iron Differential Cover Kit; Ford 7.5 Axle

Part Number: SDH-10049342

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Dana Spicer Drivetrain Products Pinion Supports 10029035

DIFFERENTIAL PINION SUPPORT; ALUMINUM; 5-BOLT DAYTONA OVERSIZE; 35 SPLINE

Part Number: SDH-10029035

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Yukon Gear & Axle Differential Pinion Yokes YY C3723251

Yukon yoke for Chrysler 7.25" and 8.25" with a 7260 U/Joint size

Part Number: YGA-41003

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

Centerforce DFX Pressure Plates 311165552

Pressure Plate, DFX Series, Competition Replacement, Easy Pedal Effort

Part Number: CTF-311165552

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Centerforce I Pressure Plates CF361909

Pressure Plate, Centerforce I, Diaphragm-Style, 12 in. Disc Diameter, Each

Part Number: CTF-CF361909

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

RAM Powergrip Clutch Kits 98765

RAM Powergrip Clutch Kits 98765

Clutch Kit, Powergrip, 1.125 in. - 10-spline, Metallic/Organic Disc, Pressure Plate, Jeep, 4.2L, Kit

Part Number: RAM-98765

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 ZG Series Ring and Pinion Sets ZG GM12T-456 GM 8.875 in. (12-bolt) truck 4.56 Gears

USA Standard Ring & Pinion gear set for GM 12 bolt truck in a 4.56 ratio

Part Number: SPZ-36179

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 HDX Clutch Kits for 1976-1981 CJ5, CJ7, 1976-1978 DJ5 - 88767HDX

Clutch Kit, HDX, 1.062 in. - 10-spline, Organic Disc, Jeep, Kit

Part Number: RAM-88767HDX

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 Powergrip Clutch Kits for 1976-1981 CJ5, CJ7, 1976-1978 DJ5 - 98767

Clutch Kit, Powergrip, Metallic/Organic, 10.50 in., Borg and Beck Pressure Plate, Jeep, CJ, Kit

Part Number: RAM-98767

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

Richmond Gear EXCel Ring and Pinion Sets D35373 Dana 35 3.73 Gears

Ring and Pinion Kit

Part Number: RMG-D35373

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

XClutch Stage 2 Clutch Kits XKNI23001-1B

Clutch Kit - Stage 2 Single Sprung Ceramic Clutch Disc

Part Number: XCL-XKNI23001-1B

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

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

Richmond Gear EXCel Ring and Pinion Sets TL95488 Toyota 9.5 in. 4.88 Gears

Ring and Pinion, RP TOYOTA LANDCRUISER 4.88

Part Number: RMG-TL95488

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

PRW Billet Aluminum 153-Tooth Flywheel 1945400

Flywheel, PQx, Billet Aluminum, 153-tooth, 15.000 lbs., SFI 1.1, External Engine Balance, Chevy, 7.4L, 8.2L, Each

Part Number: PQX-1945400

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 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

SVL Drivetrain Ring and Pinion Gear Sets 10004683 GM 8.875 in. (12-bolt) truck 4.56 Gears

Differential Ring and Pinion; GM 12 Bolt 8.875 - Thick Gear, 4.56 Ratio

Part Number: SVL-10004683

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

Dana Spicer Drivetrain Products Differential Covers 10048737

Differential Cover, 2007 & Up Wrangler JK Non-Rubicon Dana 30 Front Blue Nodular Iron - Performance (with hardware & Performance Gasket)

Part Number: SDH-10048737

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Dana Spicer Drivetrain Products Spools and Mini Spools 2022501

Performance Spool (Ford 9" 31 Spline)

Part Number: SDH-2022501

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today