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Instruction Sheets for Part Number SUM-705418
Summit Racing™ Torque Converter Lockup kits
Torque Converter Lockup Kit, Vacuum Switch Activated, 700R4, Kit
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Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SUM-705418
Part Type:
Product Line:
Summit Racing Part Number:
SUM-705418
UPC:
190861298507
Manual Override Switch Included:
No
Indicator Light Included:
No
Quantity:
Sold as a kit.
Notes:
Kit contains a gasket for the 700R4 transmission. The 200-4R pan gasket must be purchased separate. Vacuum switch is included.
Summit Racing™ Torque Converter Lockup kits
Summit Racing™ torque converter lockup kits are a simple way to control converter clutch lockup in 4th gear when swapping a GM 700R4 or 200-4R transmission in an early non-computer controlled vehicle. The adjustable vacuum switch will hold the clutch on during steady state cruising and disengage when accelerating or downshifting.
Summit Racing™ torque converter lockup kits are available in automatic (+12V applied via vacuum switch) and manual (+12V applied via toggle switch) versions. Choose the one preferred for your application.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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