Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
1978 Differential & Rear-End Components
Showing In Stock Items. Show All 75 Items.
Not Showing Customizable Items. View Customizable Items.
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: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
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: Today
Estimated Ship Date: Today
Axle Assembly, 9 in. Alloy Steel. 1541H Alloy Steel Axles, 31 Spline, GM. Each
Part Number: CUR-CE-GMG7887X
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Electric Locker, 30-Spline, Dana 44, 3.73 and Lower Ratios, Each
Part Number: ETN-19977-010
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Select-A-Loc, 35-Spline, Dana 44, 10-Bolt, Each
Part Number: AUB-545044
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
Axle Assembly, 70-81 GM F-Body Camaro/F-Body, Ridetech Brackets, Mini-Tub Width Rear, 9-inch, 31-Spline, 5 x 4.75" Bolt Pattern, Housing & Axle Kit
Part Number: CUR-CEGMF7081RTM
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
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: Today
Estimated Ship Date: Today
Differential, Eaton Elocker Dana 60 4.10 & Down 30 Spline
Part Number: ETN-14020-010
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Axle Assembly, 9 in, Alloy Steel, 1541H Alloy Steel Axles, 31 Spline, Chevy, Pontiac, Each
Part Number: CUR-CE-GMF7081X
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
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 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Differential Ring and Pinion, Differential Ring and Pinon Front and Rear Complete Kit
Part Number: MGR-MGK-227
Not Yet Reviewed
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
DROPOUT ASSEMBLY
Part Number: YGA-13210
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
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 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Differential, Posi Performance, Electric Locker, 30-Spline, GM, 8.5 in., Each
Part Number: ETN-19659-010
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
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 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Zip Locker, Air Locker, Dana 60/61, 35 Spline, 4.56 Up Ratio, Each
Part Number: YGA-34024
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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: Today
Estimated Ship Date: Today
Differential Ring and Pinion, Differential Ring and Pinon Front and Rear Complete Kit
Part Number: MGR-MGK-233
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Differential, Select-A-Loc, 30-Spline, Dana 44, 10-Bolt, Each
Part Number: AUB-545042
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
Differential, Eaton Elocker Dana 70 4.10 & Down 40 Spline
Part Number: ETN-14034-010
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Yukon Dropout Assembly
Part Number: YGA-13229
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
D44 27/30spl FRONT AXLE KIT, w/ Super-Joint, 71-80 SCOUT (ASSM_REQ)
Part Number: SPZ-35134
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Differential, Eaton Elocker Dana 70 4.56 & Up 35 Spline
Part Number: ETN-14033-010
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
