Conventional GM Powerglide servos are not well-supported. At high apply pressures or with a worn servo pin bore, the servo piston is side-loaded in the case, causing friction and binding of the piston. This unique Sonnax supported servo pin and cover kit eliminates friction caused by side-loading and ensures the servo piston will apply and release without binding.
Unique design eliminates piston binding that causes unexplained band failure
Conventional GM Powerglide servos are not well-supported. At high apply pressures or with a worn servo pin bore, the servo piston is side-loaded in the case, causing friction and binding of the piston. This unique Sonnax supported servo pin and cover kit eliminates friction caused by side-loading and ensures the servo piston will apply and release without binding.
Contents:
SONNAX Installation Instructions