American Powertrain Parts and Accessories

ProFit TKX Combo Kit for 1975-81 Chevy F-body Camaro, Firebird and TransAm .81 OD

Part Number: AWR-COGM-F3DX

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Combo, ProFit, Close Ratio, T-56 Magnum, 6-Speed, 1975-81 GM F-Body, 2.66:1 First Gear, 0.63:1 Sixth, Kit

Part Number: AWR-COGM-F3G

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Combo, ProFit, Wide Ratio, T-56 Magnum, 6-Speed, 1975-81 GM F-Body, 2.97:1 First Gear, 0.50:1 Sixth, Kit

Part Number: AWR-COGM-F3J

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Combo, ProFit, Close Ratio, T-56 Magnum, 6-Speed, 1968-74 Chevy Nova, 2.66:1 First Gear, 0.63:1 Sixth, Kit

Part Number: AWR-COGM-X2G

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Combo, ProFit, Wide Ratio, T-56 Magnum, 6-Speed, 1968-74 Chevy Nova, 2.97:1 First Gear, 0.50:1 Sixth, Kit

Part Number: AWR-COGM-X2J

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

1968-72 GM BOP A-Body (LeMans, GTO, Cutlass, 442, Skylark, GS) Kit Includes: TKX18083 Tremec TKX - 600ft-lb Constant Load Rated, 3.274 1st, .72OD

Part Number: AWR-COPO-A2BX

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

1968-72 GM BOP A-Body (LeMans, GTO, Cutlass, 442, Skylark, GS) Kit Includes: TKX17722 Tremec TKX - 600ft-lb Constant Load Rated, 2.87 1st, .81OD

Part Number: AWR-COPO-A2DX

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

1979-93 Mustang Fox Body Magnum 6-Speed Kit

Part Number: AWR-COFO-M2G

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

• Free Shipping
• Special Order

Tremec 5 speed 4050 GM transmission 600 lb-ft torque, Max RPM 5600, 1480 yoke, 10 spline input, 6.16,3.11,1.71,1.0,.76 2WD NV4500 bolt pattern

Part Number: AWR-TDET18574

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

• Free Shipping
• Special Order