Performance & Replacement Transmission & Drivetrain Parts

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

• Free Shipping

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

• Free Shipping

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

Part Number: NAL-19302405

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

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

• Free Shipping

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

• Free Shipping

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

• Free Shipping

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

• Free Shipping

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

• $10 Summit Bucks

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
• Special Order

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

• Drop Ship
• Free Shipping
• Special Order

Speedometer Port Plug, Billet Aluminum, Black Anodized, Each

Part Number: BMM-20298

4.0 out of 5 stars ( 15 )

Estimated Ship Date: Today

Differential, Auburn, Locker, 29-Spline, AMC 20, 12-Bolt, Each

Part Number: AUB-545006

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Automatic Transmission Controller Component, Bluetooth Adapter, for Use Adapting the TCI EZ-TCU To Work with Bluetooth, GM, TCI, Each

Part Number: TCI-302611

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Speedometer Port Plug, Billet Aluminum, Black Anodized, GM, TH400, Each

Part Number: BMM-20301

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

Automatic Transmission Controller, Quick4, Chevy, 4L80-E, 4L85-E, Kit

Part Number: GES-GSUSQ44L8085

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Manual Transmission, Tremec, 6-speed, Aluminum Case, 26-spline Input, 2.66:1 First Gear Ratio, Ford, Each

Part Number: FMS-M-7003-M6266

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Speedometer Delete Plug, Billet Aluminum, Natural, TH400, Each

Part Number: ICB-551908

3.71 out of 5 stars ( 7 )

Estimated Ship Date: Today

Speedometer Port Plug, Billet Aluminum, Natural, 700R4, Each

Part Number: ICB-551961

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today