Ford E4OD and 4R100 transmissions are prone to case deflection because the OE design, which has a gap between the case and center support. When the center support bolts are torqued to OE specifications without the shim, typical case distortion is .005" in the area around the center support bolts, which causes valve body cross leaks as well as leaks of the 2nd clutch feed between the case and center support. Sonnax center support shim fills this gap so that when the center support bolts are tightened, it prevents the case from distorting, decreasing case deflection and reducing cross leaks.

Minimizes case distortion
Reduces cross leaks

More From This Category

MANLEY Connecting Rod Pin Bushing, Bronze, .952 in. OD, .867 in. ID, .935 in. Length, Set of 8

MANLEY Connecting Rod Pin Bushing, Bronze, .952 in. OD, .867 in. ID, .935 in. Length, Set of 8

$182.30

Motive Gear Differential Pinion Bearing Kit, Koyo, For CHEVROLET CAMARO 2010–2015, Kit

Motive Gear Differential Pinion Bearing Kit, Koyo, For CHEVROLET CAMARO 2010–2015, Kit

$205.61

TCI 95-'97 4L60E Front Pump Assembly w/ Billet Rotor Kit

TCI 95-'97 4L60E Front Pump Assembly w/ Billet Rotor Kit

$1,170.26