Sonnax enhanced performance accumulator spring 77704S provides firmer 1-2 shifts for the enthusiast that appreciates quick, positive shift feel in listed GM units. The Sonnax spring design provides performance shift feel, but does not reduce accumulator piston travel. This allows for a firmer - but still cushioned - shift that minimizes shock to the band and shafts.
The Sonnax spring achieves the same effect as the common shop practice of replacing the OE 1-2 accumulator spring with the THM 350 direct accumulator piston spring. The Sonnax spring also may be used as a replacement for the THM 350 direct accumulator piston spring.

More From This Category

MANLEY Valve Spring Retainer, Steel, 7 Degree, 1.437 in. OD, Set of 16

MANLEY Valve Spring Retainer, Steel, 7 Degree, 1.437 in. OD, Set of 16

$140.86

Sonnax Shim, Chrysler, 40Te/S, 41Ae/Te, 41Te/S, 42Le,

Sonnax Shim, Chrysler, 40Te/S, 41Ae/Te, 41Te/S, 42Le,

$15.28

MANLEY Valve Spring Retainer, Titanium, Super 7 Degree, 1.500 in. OD, Double, Lightweight, Set of 16

MANLEY Valve Spring Retainer, Titanium, Super 7 Degree, 1.500 in. OD, Double, Lightweight, Set of 16

$890.07

COMP Cams Valve Spring, Dual, 1.625 in. O.D, 630 lbs./in. Rate, 1.090 in. Coil Bind Height, Each

COMP Cams Valve Spring, Dual, 1.625 in. O.D, 630 lbs./in. Rate, 1.090 in. Coil Bind Height, Each

$76.57

COMP Cams Titanium Retainer, 10 Degree, 1.500 in.-1.550 in. OD Double Springs, Each

COMP Cams Titanium Retainer, 10 Degree, 1.500 in.-1.550 in. OD Double Springs, Each

$58.91

MANLEY Valve Spring, 1.126 in. OD, 330 lbs./in. Rate, 0.880 in. Coil Bind Height, For Subaru EJ20/STiEJ25, Set of 16

MANLEY Valve Spring, 1.126 in. OD, 330 lbs./in. Rate, 0.880 in. Coil Bind Height, For Subaru EJ20/STiEJ25, Set of 16

$711.04