Performance & Replacement Transmission & Drivetrain Parts

Automatic Transmission Assembly, Non-Electronic 4x Four-Speed Package for 8-Bolt Chrysler Big Block (750 HP)

Part Number: TCI-371800P7

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Automatic Transmission Assembly, Non-Electronic 4x Four-Speed Package for Pontiac (750 HP)

Part Number: TCI-371800P8

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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• Special Order

Automatic Transmission Assembly, Non-Electronic 4x Four-Speed Package for Buick/Oldsmobile (750 HP)

Part Number: TCI-371800P9

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Automatic Transmission Assembly, Non-Electronic 4x Four-Speed Package for Pontiac (550 HP)

Part Number: TCI-371700P8

Not Yet Reviewed

• Free Shipping
• Special Order

Automatic Transmission Controllers, Sniper 2 EFI, Controller and Power Harness, Kit

Part Number: SNE-551-103

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Automatic Transmission Package, SuperMatic 6L80E, 2,400-2,800 Stall Converter, Chevrolet, LSX Engines, RWD, Kit

Part Number: NAL-19366637

Not Yet Reviewed

Estimated Ship Date: Today

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Automatic Transmission Controllers, Sniper EFI, Standalone Kit, Carbureted Applications, Kit

Part Number: SNE-551-102

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Automatic Transmission Controller, Atomic, Chevy, Ford, Lincoln, Mercury, Each

Part Number: MSD-2760

3.74 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Automatic Transmission, SuperMatic 6L80-E, 3000-3400 Stall Converter, 650 lb. ft. Torque, Controller, Harness, Chevrolet, LS/LSX Crate Engines, Kit

Part Number: NAL-19417102

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Automatic Transmission Controllers, Sniper EFI, Controller With Power Harness, Sniper 1 applications, Kit

Part Number: SNE-551-101

Not Yet Reviewed

Estimated Ship Date: Today

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Transmission Controller, Chevy, 4L60E, 4L65E, 4L70E, Each

Part Number: NAL-19302405

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Tailshaft Adapter, 6-Bolt To 4-Bolt, Billet Aluminum, Natural, GM 4L60E, 4WD, Each

Part Number: ADD-50-0405E

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Automatic Transmission, Up to 650 hp/600 ft. lbs, Rated Max, Level 4, 4L65E, RWD, 2,600 - 4,000 Stall, LS Bellhousing, Chevrolet, Kit

Part Number: GES-GS4L65EL4

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Core Charge $350.00
• Free Shipping
• Mfr. Rebate

$250.00 Mail-In Rebate

Price after Manufacturer Rebate: $5,695.00

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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Automatic Transmission, Up to 500 hp/500 ft. lbs, Rated Max, Level 3, 4L65E, RWD, 2,600 - 3,200 Stall, LS Bellhousing, Chevrolet, Kit

Part Number: GES-GS4L65EL3

Not Yet Reviewed

Estimated Ship Date: Today

• Core Charge $350.00
• Free Shipping
• Mfr. Rebate

$250.00 Mail-In Rebate

Price after Manufacturer Rebate: $4,695.00

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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Automatic Transmission Controller, 4L80E, 4L85E, Chevy, Each

Part Number: NAL-19302410

Not Yet Reviewed

Estimated Ship Date: Today

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Transmission Harness, All-In-One Transmission Wiring Harness, Manual, T-56, Ford, GM, Each

Part Number: BTM-7100000

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Transmission Controller, Wireless, Bluetooth, GM 4L60E, 4L65E, 4l70E, 4L80E, 4L85E, TCI 4X, 6X, Each

Part Number: TCI-302600

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Automatic Transmission, Up to 750 hp/550 ft. lbs. Max, Level 4, 4R70W, 4WD, 2,600 - 4,500 Stall, 2 Bolt Starter, Small Block Ford, Kit

Part Number: GES-GS4R7024X4L4

Not Yet Reviewed

Estimated Ship Date: Today

• Core Charge $500.00
• Free Shipping
• Mfr. Rebate

$250.00 Mail-In Rebate

Price after Manufacturer Rebate: $7,845.00

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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Transmission Controller Components, Replacement, Control Box, TCU, up to 2009, EZ-TCU, GM, Each

Part Number: TCI-30282

2.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Differential, Auburn, Locker, Select-A-Loc, 35-Spline, Dana 70, 10-Bolt, Each

Part Number: AUB-545026

Not Yet Reviewed

Estimated Ship Date: Today

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Driveshaft, Assembled, Balanced, Chromoly, 3 in. Diameter, 39.375 in. Length, Rear, Chevy, Pontiac, Each

Part Number: STR-U1699F60

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Shift Valve, Heavy-Duty 2-3, 4L60E, 4L65E, 4L70E, Kit

Part Number: SOX-77754-41

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Speedometer Port Plug, Billet Aluminum, Black Anodized, Each

Part Number: BMM-20299

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Today

Manual Transmission, Magnum XL, 6-Speed, 1 1/8 in. 26-Spline, 2.97 First Gear, 0.63 Overdrive, Each

Part Number: REM-TUET18132

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Drop Ship
• Freight Charge
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Automatic Transmission Controller, Go Shift, AODE, Ford, KIt

Part Number: FIF-20011

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 12, 2026 if ordered today

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• Special Order