Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
Automatic Transmission Shift Kits
Instead of replacing your automatic transmission’s whole valve body, you can get better performance out of your stock valve body with a transmission shift kit....
Instead of replacing your automatic transmission’s whole valve body, you can get better performance out of your stock valve body with a transmission shift kit. Different manufacturers use different components and techniques, but they all modify the way transmission fluid is routed through the valve body. Some kits are made for racing and performance driving, while others are for towing and heavy-duty hauling. Whatever your application demands, Summit Racing Equipment has the shift kit you need.
Top Brands
When it comes to the complexities of your automatic valve body, you want a manufacturer you can trust. Summit...
Instead of replacing your automatic transmission’s whole valve body, you can get better performance out of your stock valve body with a transmission shift kit. Different manufacturers use different components and techniques, but they all modify the way transmission fluid is routed through the valve body. Some kits are made for racing and performance driving, while others are for towing and heavy-duty hauling. Whatever your application demands, Summit Racing Equipment has the shift kit you need.
Top Brands
When it comes to the complexities of your automatic valve body, you want a manufacturer you can trust. Summit only carries transmission shift kits from top name brands, including TransGo, TCI Auto, B&M, Sonnax, and Performance Automatic.
Showing In Stock Items. Show All 52 Items.
ATP Automatic Transmission Upgrade Kit
Part Number: ATP-SK3
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
SHIFT KIT® Valve Body Repair Kit Fits FMX 1973-81 Cast Iron Case
Part Number: TRG-SK3-73
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
SHIFT KIT Valve Body Repair Kit, Ford 3SPD 1958-61 SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK3
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
SHIFT KIT Valve Body Repair Kit, Ford Cast Iron 1967-73 SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK3-67
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
SHIFT KIT Valve Body Repair Kit, Ford Cruise-O-Matic 1961-63 w/Vacuum Mod SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK3V
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
SHIFT KIT® Valve Body Repair Kit Fits GEN3 6T40 Series, 6T31, 6T41/6T51
Part Number: TRG-SK6T40-G3
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Automatic Transmission Shift Kits, Valve Body Repair, Cruiseomatic, Kit
Part Number: TRG-SK3VL
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Specialty Components, TH440-T4, 4T60 SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK440-3
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Valve Body Repair, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, TH250, TH250C, TH350, TH350C, Kit
Part Number: TRG-SK350
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Shift Kits, Valve Body Repair, AW4, A343, A341, A340, Kit
Part Number: TRG-SK340
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
SHIFT KIT Valve Body Repair Kit, TH325 SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK325
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
SHIFT KIT Valve Body Repair Kit, TH325-4L SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK325-4L
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
