Performance & Replacement Transmission & Drivetrain Parts

Transmission Pan, Deep, Aluminum, Natural, Includes Filter Spacer, GM, Powerglide, Each

Part Number: MOR-42000

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Transmission Modulator Valve, GM, TH300, TH350, TH400, Each

Part Number: ATP-JX66

5.0 out of 5 stars ( 14 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885373

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Valve Body, Full Manual, Forward Pattern, Chevy, TH350, Each

Part Number: TCI-321001

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Transmission Filter, Replacement, Each

Part Number: WIX-58904

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Gear, Ring and Pinion, 4.30:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885430

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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FORWARD/REVERSE ABUSE VALVE

Part Number: SOX-7775435K

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Clutch Master Cylinder, GS Compact Remote, Cast Aluminum, Black, 3/8-24 in. Outlet, Each

Part Number: WIL-260-15089

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Gear, Ring and Pinion, 3.55:1 Ratio, Chevy, Set

Part Number: MGR-V885355

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Automatic Transmission Shift Kit, Gaskets, Jeep, Toyota, Kit

Part Number: TRG-340-HD2

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Reduction Gears, 6.5 T-Case Gear, Suzuki Samurai, Kit

Part Number: TGI-105004-3-KIT

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Automatic Shifter, Quarter Stick, Chevy, TH250/TH350/TH375/TH400, Each

Part Number: HUU-3160006

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Valve Body, Streetfighter, Automatic, Manual, Forward Pattern, Ford, C-6, Each

Part Number: TCI-421100

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Automatic Shifter, GM, 6L90E, 6 in. Straight Chrome Stick, Brushed Aluminum, Mushroom Knob, Each

Part Number: LOK-ES6L90FM

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Wheel Hub and Bearing Assembly, Front, Dodge, Each

Part Number: MOG-515061

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Automatic Shifter, Electronic Sport Shifters, Detent, 16.000 in. Single Bend Black Stick, 3/8-24 in., Black Mushroom Knob, 6R80E, Each

Part Number: LOK-ES6R80BXMB

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Transmission Filter, Replacement, Each

Part Number: WIX-58843

4.91 out of 5 stars ( 11 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, Ford, 8.8 in., 10-Bolt, Set

Part Number: RMG-F88373

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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FN988 TA CASE 31 SPL TT 3.31 RATIO 1350

Part Number: DSR-070881-331DS

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Automatic Shifter, Electronic Sport Shifters, Detent, 6.000 in. Straight Black Stick, 3/8-24 in., Black Mushroom Knob, 4L80E, Each

Part Number: LOK-ES4L80FXMB

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Shifter Installation Kit, Competition Plus, Saginaw, 441, Chevy, Kit

Part Number: HUU-3737919

4.86 out of 5 stars ( 14 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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TCC Regulator and Isolator Valve Kits, 4L80E, 4L85E, Kit

Part Number: SOX-34994-01K

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Gear, Ring and Pinion, 3.90:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-390

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Bottle, CO2, 2.5 lbs., Aluminum, Natural, Valve, Regulator, Plastic Air Tubing, Kit

Part Number: DED-AB25K

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

• Free Shipping
• Mfr. Rebate

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 4/30/2026

Get up to $150 back after rebate when you buy products from AutoMeter Brands! Go to: http://summitracing.com/go/atm ...Read More

Get up to $150 back after rebate when you buy AutoMeter Products! Also includes Auto Gage, Dedenbear, Marine, Spek-Pro and Stack Brands. Spend $100-$199 and get $10 back. Spend $200-$449 and get $25 back. Spend $450-$699 and get $50 back. Spend $700-$999 and get $75 back. Spend $1,000-$1,499 and get $100 back. Spend $1,500 or more and get $150 back. Go to http://summitracing.com/go/atm for complete offer information. Valid on purchases made between 3/15/26 and 4/30/26. Rebate submission must be postmarked by 5/31/26. Limit one rebate per household. Allow up to 12 weeks for processing. Purchase amount is the subtotal before taxes and shipping. Show Less

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Shift Kit, Automatic Type, Ford, C-6, Towing, Competition, Heavy Duty, Gas Engines, Each

Part Number: TRG-67-1-2

4.82 out of 5 stars ( 17 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air