High pressure needs high-rate springs, and TCI pressure regulator springs will make the psi that you need, depending on the boost valve selection. When you need replacement parts for your competition transmission, TCI will keep you in the race.

More From This Category

Sonnax Extra Wide Intermediate Band, 4L60, 4L60-E, 4L65-E, 4L70-E, Each

Sonnax Extra Wide Intermediate Band, 4L60, 4L60-E, 4L65-E, 4L70-E, Each

$78.06

Sonnax Crankshaft Spacer, Ford, A4Ld, 4R44E, 5R44E, 4R55E, 5R55E, Each

Sonnax Crankshaft Spacer, Ford, A4Ld, 4R44E, 5R44E, 4R55E, 5R55E, Each

$32.24

MANLEY Connecting Rod Pin Bushing, Bronze, .894 in. OD, .866 in. ID, 1.015 in. Length, Set of 4

MANLEY Connecting Rod Pin Bushing, Bronze, .894 in. OD, .866 in. ID, 1.015 in. Length, Set of 4

$91.14

TCI 700R4/4L60/65E Second Gear Jumbo Servo Kit

TCI 700R4/4L60/65E Second Gear Jumbo Servo Kit

$313.23

TCI Servo Sealing Rings, For Ford C-4 Automatic Transmission, Kit

TCI Servo Sealing Rings, For Ford C-4 Automatic Transmission, Kit

$26.35