CHEVROLET Chevy big block Mark IV Transmission & Drivetrain

Axle Assembly, 9 in. Alloy Steel, 1541H Alloy Steel Axles, 31 Spline Axles, GM, Each

Part Number: CUR-CE-GMB6570X

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Differential Carrier, Select-A-Loc, Electric Locker Style, 35-spline, Ductile Iron, Rear, Dana 80, 3.07 thru 3.73 Ratio Only, Each

Part Number: AUB-545033

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Axle Assembly, 9 in. Alloy Steel. 1541H Alloy Steel Axles, 31 Spline, Chevy,. Each

Part Number: CUR-CE-GMN6872SX

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Axle Assembly, 9 in. Alloy Steel. 1541H Alloy Steel Axles, 31 Spline, Chevy,. Each

Part Number: CUR-CE-GMN6872MX

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Differential Carrier, Select-A-Loc, Electric Locker Style, 35-spline, Ductile Iron, Rear, Dana 80, Designed for 4.10:1 and Above, Each

Part Number: AUB-545032

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Axle Conversion, Rear, With Limited Slip Differential, 3.73 and Up ratio, 5 x 5.00 in. Bolt Circle, GM, Kit

Part Number: HUU-02-123

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Clutch and Flywheel Kit

Part Number: CTF-412614840

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 26, 2025 if ordered today

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STREET TWN STL CHEVY 2PC SEAL CRK 1-1/8X10 SPL 168

Part Number: MCL-64001-04

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Estimated Ship Date: Jan 7, 2026 if ordered today

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RING AND PINION

Part Number: MGR-MGK-211

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Rear Driveshaft

Part Number: RNB-936-030

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Estimated Ship Date: Dec 26, 2025 if ordered today

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

Part Number: MGR-MGK-233

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Clutch Kit, Pro Street Dual Disc, 1.125 in. - 26-spline, Organic Disc, Pressure Plate, Flywheel, Chevy, GMC, 7.4L, 8.2L, Kit

Part Number: RAM-60-2170S

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Clutch Kit, Force 10.5 Dual Disc, 1.125 in. - 10-spline, Metallic Disc, Pressure Plate, Flywheel, Chevy, GMC, 7.4L, Kit

Part Number: RAM-80-2165NS

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Silver Sport EasyFit TREMEC TKX Install Kit 73-87 C-10

Part Number: IST-RFKC103TKX

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Automatic Transmission, Early SBC/BBC 6 bolt GM Bellhousing, Automatic Valve Body, 900+HP Heavy Duty, GM, 4L80E, 2WD or RWD, 97-99 Electronics, Each

Part Number: SUM-700476

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Silver Sport EasyFit TREMEC TKX Install Kit 68-74 GM X-Body wo/console

Part Number: IST-EFKX2TKX

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Differential Carrier, Dana 70, Powr-Lok, 10 Cover Bolts, 35 Spline, Steel, Rear, Each

Part Number: SDH-706050X

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Transmission, Manual, Super T-10 4-Speed, GM, V8, Each

Part Number: RMG-7021540

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GM 4L80E Four wheel drive 4 speed overdrive automatic transmission designed for LT style engines. Level 4

Part Number: GES-GS4L804X4LT4

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$250.00 Mail-In Rebate

Price after Manufacturer Rebate: $7,595.00

Rebate Expires: 12/31/2025

Get $250 back after rebate on this Gearstar Transmission! Go to https://www.summitracing.com/go/ges to redeem offer. ...Read More

Get $250 back after rebate on a Gearstar Performance Level 3, Level 4, or Level 5 Transmission. Go to https://www.summitracing.com/go/ges to redeem offer. Valid on purchases made between 12/1/25 and 12/31/25. Rebate submission must be postmarked within 30 days of purchase. Allow 2-4 weeks for processing. Rebate for end consumer only. Show Less

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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, 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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