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

Yukon Gear & Axle Ring and Pinion Gear and Differential Combos YGK2337

Ring and Pinion Gears and Differential Combo, GM 8.5 in., 3.73:1, 30-spline Pinion, 28-spline Axle, Rear, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: YGA-12628

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Summit Racing™ 9 in. Ford Grand National Rear-End Assemblies for 1978-1987 REGAL, MONTE CARLO, 1980-1981 CUTLASS - SUM-CSUMCT006

Rear End Assembly, Grand National, Ford 9 in., 31-Spline Axles, 5 x 4.75 in. Pattern, G-Body Mounts, Kit

Part Number: SUM-CSUMCT006

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Eaton Electronic ELocker 30 Spline Differential Dana 44 19977-010

Differential, Electric Locker, 30-Spline, Dana 44, 3.73 and Lower Ratios, Each

Part Number: ETN-19977-010

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Eaton Electronic ELocker 30 Spline Differential Toyota 9.5 Inch 14212-1

Differential, Electronic Locker, ELocker, 30-Spline, Toyota 9.5 in., Toyota, Land Cruiser 40, 60, 70, 80 Series, Each

Part Number: ETN-14212-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Auburn Gear Select-A-Loc 35 Spline Differential Dana 44 545044

Differential, Select-A-Loc, 35-Spline, Dana 44, 10-Bolt, Each

Part Number: AUB-545044

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

Yukon Gear & Axle Ring and Pinion Gear and Differential Combos YGK2231

Ring and Pinion Gears,Yukon Gear & Axle 8.875" GM 12 Bolt Truck, 3.08 Ratio Rear Ring & Pinion Gea

Part Number: YGA-10631

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

Eaton Electronic ELocker 30 Spline Differential Dana 60 14020-010

Differential, Eaton Elocker Dana 60 4.10 & Down 30 Spline

Part Number: ETN-14020-010

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Ridetech Stock Width 4-Link Axle Assemblies for 1970-1981 CAMARO, FIREBIRD - 11179680

Axle Assemblies, Ford 9 in., Natural, 61.25 in. Flange to Flange, 31-Spline Axles, 1541H Alloy, Chevy, Pontiac, Kit

Part Number: ART-11179680

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-227 Dana 60/GM 10.5 in. (14-bolt) 4.10 Gears

Differential Ring and Pinion, Differential Ring and Pinon Front and Rear Complete Kit

Part Number: MGR-MGK-227

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Yukon Gear & Axle Third Member Complete Assembly YDAF9-350SVO-31

DROPOUT ASSEMBLY

Part Number: YGA-13210

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

Eaton Electronic ELocker 30 Spline Differential GM 8.6 Inch 19659-010

Differential, Posi Performance, Electric Locker, 30-Spline, GM, 8.5 in., Each

Part Number: ETN-19659-010

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Yukon Gear & Axle Zip Lockers Dana 60/61 YZLD60-3-35

Zip Locker, Air Locker, Dana 60/61, 35 Spline, 4.10 Down Ratio, Each

Part Number: YGA-34022

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 Zip Lockers Dana 60/61 YZLD60-4-35

Zip Locker, Air Locker, Dana 60/61, 35 Spline, 4.56 Up Ratio, Each

Part Number: YGA-34024

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2267 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; WITH 28spl T/L POSI

Part Number: YGA-12521

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 Ring and Pinion Gear and Installation Kit Combos YGK2269 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; WITH 28spl T/L POSI

Part Number: YGA-12523

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 Ring and Pinion Gear and Installation Kit Combos YGKT010-488 Toyota 9.5 in. 4.88 Gears

Ring and Pinion Gears and Installation Kit Combos, 4.88:1 Ratio, Toyota 9.5 in. Front, Toyota 9.5 in. Rear, Toyota, Kit

Part Number: YGA-11862

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

Eaton Electronic ELocker 27 Spline Differential Dana 30 19817-020

Differential, Dana 30; Eaton Elocker ; 27 Spline; 1.16 in. Axle Shaft Diam; 3.54 And Dwn Rng Gear Pin Rat; Fr Dana 30; Fr Dana 30 Reverse;

Part Number: ETN-19817-020

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-233 Dana 60/GM 10.5 in. (14-bolt) 5.38 Gears

Differential Ring and Pinion, Differential Ring and Pinon Front and Rear Complete Kit

Part Number: MGR-MGK-233

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Yukon Gear & Axle 4340 Chromoly Axles for 1977-1978 K35, 1979-1986 K3500, 1987 V3500 - YA W26006

Yukon front 4340 Chromoly axle kit for '77-'91 GM, Dana 60 with 30/35 splines

Part Number: YGA-21394

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

Auburn Gear Select-A-Loc 30 Spline Differential Dana 44 545042

Differential, Select-A-Loc, 30-Spline, Dana 44, 10-Bolt, Each

Part Number: AUB-545042

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

Eaton Electronic ELocker 40 Spline Differential Dana 70 14034-010

Differential, Eaton Elocker Dana 70 4.10 & Down 40 Spline

Part Number: ETN-14034-010

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

USA Standard Gear Axle Shafts for 1971-1980 SCOUT II - ZA W24128

D44 27/30spl FRONT AXLE KIT, w/ Super-Joint, 71-80 SCOUT (ASSM_REQ)

Part Number: SPZ-35134

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Yukon Gear & Axle Third Member Complete Assembly YDAF9-411YGL-31

Yukon Dropout Assembly

Part Number: YGA-13229

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

Eaton Electronic ELocker 35 Spline Differential Dana 70 14033-010

Differential, Eaton Elocker Dana 70 4.56 & Up 35 Spline

Part Number: ETN-14033-010

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

Yukon Gear & Axle 4340 Chromoly Axles for 1978-1979 BRONCO, 1976-1979 F-150 - YA W24136

Yukon front 4340 Chromoly axle kit for Dana 44, Ford Bronco and F150

Part Number: YGA-21334

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