In GM TH350 and TH350C units, the intermediate servo bore becomes scored from repeated cycling. The spring side of the piston has line pressure present in R, N, D. Excess leakage at the servo piston results in low line pressure and delayed engagements. During forward speeds, oil loss affects shift quality and reduces clutch life. To salvage cases, install Sonnax intermediate servo sleeve kit 35709-01K.

Contains an aluminum sleeve and a replacement piston with a PTFE seal
Drop-in solution requires no machining of the transmission case

More From This Category

Motive Gear Axle Shaft, 1541 Manganese, 5x5 in. Bolt Pattern, 31.375 in. Length, 30SPL, For CHEVROLET R10 SUBURBAN 1988, Each

Motive Gear Axle Shaft, 1541 Manganese, 5x5 in. Bolt Pattern, 31.375 in. Length, 30SPL, For CHEVROLET R10 SUBURBAN 1988, Each

$202.02

Sonnax Rear (Forward) Clutch Inner Lip Seal, Chrysler, 46/47Re/Rh & 48RE, 5/Bg

Sonnax Rear (Forward) Clutch Inner Lip Seal, Chrysler, 46/47Re/Rh & 48RE, 5/Bg

$44.25

Motive Gear Axle Shaft, 1541 Manganese, 5x4.5 in. Bolt Pattern, 27.25 in. Length, 28SPL, ForD RANGER 1993–1997, Each

Motive Gear Axle Shaft, 1541 Manganese, 5x4.5 in. Bolt Pattern, 27.25 in. Length, 28SPL, ForD RANGER 1993–1997, Each

$201.81