Performance & Replacement Transmission & Drivetrain Parts

Ring and Pinion Installation Kit, GM, 8.5 in., 8.6 in., 10-Bolt, Spline Pinion, Kit

Part Number: RMG-8310211

4.25 out of 5 stars ( 40 )

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Shifter, Pro Gate, 4-Speed, Automatic, Forward Shift Pattern, Black, Chevy, Each

Part Number: BMM-80902

4.8 out of 5 stars ( 10 )

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Automatic Transmission Rebuild Kit, Kolene Steels, GM, TH350, Non-Lockup, 30-Spline, Kit

Part Number: SUM-705020

4.43 out of 5 stars ( 28 )

Estimated Ship Date: Today

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Clutch Kit, RXT Street Twin, 1.125 in. - 26-spline, Ceramic Disc, Billet Aluminum Flywheel, Chevy, Pontiac, Kit

Part Number: MCL-6305507M

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic, Manual Valve Body, Chevy, 700R4, Each

Part Number: TCI-371000

3.24 out of 5 stars ( 17 )

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Transmission, Manual, Super Duty T-5, Ford, Small Block, Each

Part Number: FMS-M-7003-Z

4.28 out of 5 stars ( 32 )

Estimated Ship Date: Today

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Automatic Shifter, Stealth Pro Bandit, Pistol Grip, Chevy, Dodge, Ford, Plymouth, Chrysler, Each

Part Number: BMM-81120

4.81 out of 5 stars ( 36 )

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Flexplate, 168-Tooth, External Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevy, 454, Each

Part Number: SUM-G102SFI

4.53 out of 5 stars ( 57 )

Estimated Ship Date: Today

Torque Converter, Holeshot, 2,900-3,200 rpm Stall Range, GM, THM350/THM400, Each

Part Number: BMM-20483

5.0 out of 5 stars ( 4 )

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Differential Carrier, Dura Grip Positraction, Traction-Lok, 30-spline, Rear, GM 8.875 in. Truck, Each

Part Number: YGA-26035

3.25 out of 5 stars ( 4 )

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Yoke, 6-Bolt Adapter Flange Yoke, Tremec TR-6060, Chrysler 210mm Differential, Each

Part Number: SOX-T35ALFY07

5.0 out of 5 stars ( 5 )

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• $10 Summit Bucks

Clutch, HD/Perf Street Sprung, With Flywheel, Acura, Honda, Kit

Part Number: ACL-HC10-HDSS

Not Yet Reviewed

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Transmission Dipstick, Braided Stainless Steel Tube, Flexible, Aluminum Handle, Firewall Mount, TH350, TH400, Each

Part Number: LOK-TD-3350400FM

4.68 out of 5 stars ( 88 )

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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

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• Core Charge $350.00
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• 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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Dura Grip Positraction Carrier, Traction-Loc, GM 8.2 in., 28 Spline, 3.08 Up Ratio, Each

Part Number: YGA-26021

5.0 out of 5 stars ( 4 )

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Automatic Transmission Valve Body, Billet Aluminum, Trans-Brake, Full Manual, Reverse Shift Pattern, Chevy, TH400, Each

Part Number: SUM-700014

4.83 out of 5 stars ( 6 )

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Torque Converter, SB Series, 12.0 in. Diameter, 2,400 rpm Flash Stall, 700R4, Lockup, 30-Spline, Each

Part Number: FTI-SB2400LT30

4.3 out of 5 stars ( 27 )

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Axle Housings, Fabricated Ford 9 in. Housings, Mild Steel, Natural, 3.00 in. Axle Tube Diameter, 60.00 in. Overall Length, Ford 9 in., Each

Part Number: RHC-16-0001-60

5.0 out of 5 stars ( 4 )

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Bearing, Cone, Tapered, 4.500 in. Bore, 5.750 in. O.D., 1.946 in. Width, Each

Part Number: TMK-HM926740

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Master Cylinder, Aluminum, Black, .750 in. Bore, Universal, Kit

Part Number: WIL-260-10372

4.33 out of 5 stars ( 30 )

Estimated Ship Date: Today

Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic/Manual Valve Body, Chevy, TH350, Each

Part Number: TCI-311000

3.41 out of 5 stars ( 32 )

Estimated Ship Date: Today

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Axle Shaft, Semi-Floating, Dana 44, Rear, Steel. 31.890 in. Length, Jeep, Each

Part Number: SDH-2004449-1

4.87 out of 5 stars ( 69 )

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Manual Transmission, T-56 Super Magnum 6-Speed, 1.125 in. - 26-spline Input, 31-spline Output, Aluminum Case, Chevy, Each

Part Number: NAL-19352208

5.0 out of 5 stars ( 1 )

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Transmission Case, TH400, Aluminum, SFI Approved, GM, Each

Part Number: SUM-700405

3.0 out of 5 stars ( 2 )

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GM TORQUE CONVERTER, 6L80E, 6L85E,6L90E TRIPLE CLUTCH 3600STALL

Part Number: FTI-SRL80086-3

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