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The spring pack shim in the kit gives the option slightly tune the 4C clutch to release more quickly
Manufacturer Part Number: 6T40G3-LB-TKC
no TCC apply or TCC slip will occur
Aftermarket Improvement
Warranty is non transferable and void if product is cut open by any other person(s)
Allison 1000 2000 2400 Valve Body E-Shift Valve Spring 37000-02 wholesale The spring pack shim inSuperseded Part Number: 37000 02, S121741S 3 Interchange Part Number: 37000 02, S121741S 3 Manufacturer Part Number: 37000 02, S121741S 3 OE Spec or Performance Custom: Performance Custom Recommended Tooling (sold separately): 37000 02BST Other Part Number: 37000 02, S121741S 3 Brand: Sonnax 1000 2000 2400 E Shift Valve Spring Part No. 37000 02 Fits '00 '09 units only. Requires: 37000 02BST (Recommended) Allison 1000 2000 2400 units commonly exhibit
