Transmission & Drivetrain
Availability
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.
Brake hub, Aluminum, C5/C6 Brake Conversion Hubs, Bearings, Brackets, Kit
Part Number: UPI-304647
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
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
Bushing Kit, Clutch Bellcrank Pivot, GM, A-Body, B-Body, F-Body, G-Body, X-Body, C/K Pickup, Kit
Part Number: GMK-4041951587S
Estimated Ship Date: Today
Estimated Ship Date: Today
Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 28-Spline, GM G-Body, 7.5 in., Each
Part Number: MSR-A102810-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
78-88 GM G-Body 9-Inch Crate, Black PC, 31-Spline Axle, 4.11 Ratio, Helical Worm Gear Differential, Brakes Not Included
Part Number: CUR-CR-GG141TNBB
Not Yet Reviewed
Estimated Ship Date: Jan 26, 2026 if ordered today
Estimated Ship Date: Jan 26, 2026 if ordered today
Crate Axle, 78-88 GM G-Body Centurion 9-Inch, Black PC, 31-Spline, 3.70 Ratio, Helical Limited Slip, 11" Explorer Disc
Part Number: CUR-CR-GG137TEBB
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
78-88 GM G-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included
Part Number: CUR-CR-GG137TNBB
Not Yet Reviewed
Estimated Ship Date: Jan 26, 2026 if ordered today
Estimated Ship Date: Jan 26, 2026 if ordered today
Crate Axle, 78-88 GM G-Body Centurion 9-Inch, Black PC, 31-Spline, 3.50 Ratio, Helical Limited Slip, 11" Wilwood 11" Dynapro Black Calipers
Part Number: CUR-CR-GG135TWAB
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 28-Spline, GM G-Body, 7.5 in., Each
Part Number: MSR-A102801-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
78-88 GM G-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.50 Ratio, Helical Worm Gear Differential, Brakes Not Included
Part Number: CUR-CR-GG135TNBB
Not Yet Reviewed
Estimated Ship Date: Jan 26, 2026 if ordered today
Estimated Ship Date: Jan 26, 2026 if ordered today
Crate Axle, 78-88 GM G-Body Centurion 9-Inch, Black PC, 31-Spline, 3.00 Ratio, Helical Limited Slip, 11" Explorer Disc
Part Number: CUR-CR-GG130TEBB
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Crate Axle, 78-88 GM G-Body Centurion 9-Inch, Black PC, 31-Spline, 3.00 Ratio, Helical Limited Slip, 11" Wilwood 11" Dynapro Black Calipers
Part Number: CUR-CR-GG130TWAB
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Crate Axle, 78-88 GM G-Body Centurion 9-Inch, Black PC, 31-Spline, 3.70 Ratio, Helical Limited Slip, 11" Wilwood 11" Dynapro Black Calipers
Part Number: CUR-CR-GG137TWAB
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Crate Axle, 78-88 GM G-Body Centurion 9-Inch, Black PC, 31-Spline, 4.11 Ratio, Helical Limited Slip, 11" Explorer Disc
Part Number: CUR-CR-GG141TEBB
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
GM 6-speed Hydraulic Clutch System for 1978-87 GM G-Body Monte Carlo, Malibu, Olds 442, El Camino Fits TREMEC T-56/Magnum Includes: Hydramax Under Da
Part Number: AWR-HMGM40061
Not Yet Reviewed
Estimated Ship Date: Mar 5, 2026 if ordered today
Estimated Ship Date: Mar 5, 2026 if ordered today
ProFit TKX 5-Speed Kit for 1978-88 GM G-body (Malibu, Monte Carlo, El Camino, Regal, Cutlass, 442,, LeMans, Bonneville, Grand Prix) .72 OD
Part Number: AWR-COGM-G1B
Not Yet Reviewed
Estimated Ship Date: Mar 5, 2026 if ordered today
Estimated Ship Date: Mar 5, 2026 if ordered today
ProFit TKX 5-Speed Kit for 1978-88 GM G-body (Malibu, Monte Carlo, El Camino, Regal, Cutlass, 442,, LeMans, Bonneville, Grand Prix) .81 OD
Part Number: AWR-COGM-G1F
Not Yet Reviewed
Estimated Ship Date: Mar 5, 2026 if ordered today
Estimated Ship Date: Mar 5, 2026 if ordered today
ProFit TKX 5-Speed Kit for 1978-88 GM G-body (Malibu, Monte Carlo, El Camino, Regal, Cutlass, 442,, LeMans, Bonneville, Grand Prix) .68 OD
Part Number: AWR-COGM-G1X
Not Yet Reviewed
Estimated Ship Date: Mar 5, 2026 if ordered today
Estimated Ship Date: Mar 5, 2026 if ordered today
GM 5-speed Hydraulic Clutch System for 1978-87 GM G-Body Monte Carlo, Malibu, Olds 442, El Camino Fits TKX/TKO/T10/Saginaw/Richmond/Jericho/DN4+3.. Ki
Part Number: AWR-HMGM40060
Not Yet Reviewed
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
1978-1988 GM G-Body C5/C6 Brake Conversion Hubs & Bearing Kit
Part Number: UPI-3047
Not Yet Reviewed
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Axle Housing, GM G-Body, Ford 9 in., Mild Steel, 58 in Length, Kit
Part Number: AAF-ALL68756
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 26-Spline, GM G-Body, 7.5 in., Pair
Part Number: MSR-A102601CT
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Rear End Assembly, Grand National, Ford 9 in., 28-Spline Axles, 5 x 4.75 in. Pattern, G-Body Mounts, Kit
Part Number: SUM-CSUMCT005
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
Rear End Assembly, Grand National, Ford 9 in., 28-Spline Axles, 5 x 5.00 in. Pattern, G-Body Mounts, Kit
Part Number: SUM-CSUMCT007
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
Need It Sooner? We recommend these similar substitute parts:
Not Yet Reviewed
Estimated Ship Date: Today
Axle, Rear, 7.5", 26 Spline, 1978-88 G-Body
Part Number: OPG-CH23821
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
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Summit Racing™ 9 in. Ford Grand National Rear-End Assemblies for 1978-1987 REGAL, MONTE CARLO, 1980-1981 CUTLASS - SUM-CSUMCT006
