Performance & Replacement Transmission & Drivetrain Parts

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

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Estimated Ship Date: Feb 3, 2026 if ordered today

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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

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Transmission Combo, Tremec T-56, 6-Speed, Chevy, 2.66:1 First Gear, 0.63:1 Fifth Gear, Kit

Part Number: AWR-COGM-T1G

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Transmission Combo, Tremec T-56, 6-Speed, Chevy, 2.97:1 First Gear, 0.50:1 Fifth Gear, Kit

Part Number: AWR-COGM-T1J

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Estimated Ship Date: Feb 3, 2026 if ordered today

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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

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Estimated Ship Date: Feb 3, 2026 if ordered today

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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

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Combo, ProFit, Close Ratio, T-56 Magnum, 6-Speed, 1964-67 GM A-Body, 2.66:1 First Gear, 0.63:1 Sixth, Kit

Part Number: AWR-COGM-A1G

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Combo, ProFit, Wide Ratio, T-56 Magnum, 6-Speed, 1964-67 GM A-Body, 2.97:1 First Gear, 0.50:1 Sixth, Kit

Part Number: AWR-COGM-A1J

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Combo, ProFit, Close Ratio, T-56 Magnum, 6-Speed, 1968-72 GM A-Body, 2.66:1 First Gear, 0.63:1 Sixth, Kit

Part Number: AWR-COGM-A2G

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Combo, ProFit, Wide Ratio, T-56 Magnum, 6-Speed, 1968-72 GM A-Body, 2.97:1 First Gear, 0.50:1 Sixth, Kit

Part Number: AWR-COGM-A2J

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Combo, ProFit, Close Ratio, T-56 Magnum, 6-Speed, 1955-57 Tri-5 Chevy, 2.66:1 First Gear, 0.63:1 Sixth, Kit

Part Number: AWR-COGM-B1G

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Combo, ProFit, Wide Ratio, T-56 Magnum, 6-Speed, 1955-57 Tri-5 Chevy, 2.97:1 First Gear, 0.50:1 Sixth, Kit

Part Number: AWR-COGM-B1J

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Differential, Select-A-Loc, 28-Spline, GM, 8.5 in., 10-Bolt, Each

Part Number: AUB-545003

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Estimated Ship Date: Monday 12/8/2025

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Differential, Auburn, Locker, 31-Spline, Ford, 8.8 in. IRS, Each

Part Number: AUB-545005

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Estimated Ship Date: Monday 12/8/2025

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Differential, Auburn, Locker, 30-Spline, Dana 35, 10-Bolt, Each

Part Number: AUB-545015

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/8/2025

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

Part Number: AUB-545042

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Transmission Package, GM LS Tremec 5 SPD - 2.87, 1.89, 1.28, 1.00, .81, Alum. Bell, Clutch, Flywheel, Hyd T/O Bearing, Fluid, Pigtails, & trans mount

Part Number: BTM-1517722

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Differential, Auburn, Locker, 30-Spline, Dana 35, 10-Bolt, Each

Part Number: AUB-545014

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Center Support Mount

Part Number: PIO-648469

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Center Support Mount

Part Number: PIO-648587

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Driveshaft Support Carrier Bearings

Part Number: PIO-648680

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Transmission Speedometer Plug, Steel, Natural, Each

Part Number: SDA-555-7072

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Dec 30, 2025 if ordered today

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Driveshaft, 2-Piece, Front, 4140 Chromoly, Jeep, Each

Part Number: MGR-TFF1350-2155

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Driveshaft, 2-Piece, Rear, 4140 Chromoly, Jeep, Each

Part Number: MGR-TFR1310-4157

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Automatic Transmission Controllers, Controller, Harness, Software, Chevrolet, 4L80E/4L85E, Kit

Part Number: NAL-19332780

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Estimated Ship Date: Apr 2, 2026 if ordered today

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