Wear or debris can prevent the third accumulator checkball and seat from correctly sealing the 3-4 apply circuit. Installing Sonnax 3rd accumulator checkball and seat 74480D prevents leaks in the circuit and 3-2/2-3 timing issues and prolongs the life of the 3-4 clutch.

More From This Category

Sonnax Extreme Strength Output Shaft, Powerglide, 27T Short, Each

Sonnax Extreme Strength Output Shaft, Powerglide, 27T Short, Each

$1,061.41

Sonnax Secondary Pulley Bearing, JF017/19E (Re0F10E/J), Each

Sonnax Secondary Pulley Bearing, JF017/19E (Re0F10E/J), Each

$188.24

TCI Gerotor Pump Body W/Gears

TCI Gerotor Pump Body W/Gears

$893.32

Sonnax Oversized Seal Rings, GM 4L80E, 4L85E

Sonnax Oversized Seal Rings, GM 4L80E, 4L85E

$11.36

TCI 88-'93 700R4 Front Pump Assembly w/ Billet Rotor Kit.

TCI 88-'93 700R4 Front Pump Assembly w/ Billet Rotor Kit.

$1,109.32