New Sonnax Heavy Duty Intermediate Clutch Outer Sprag Race
A direct replacement for 4L80/85-E transmissions and easily adapted to TH400, Sonnax heavy duty intermediate clutch outer sprag race #34663HD-02 expertly guards against sprag failure.
Featuring an innovative material and design combination, it significantly improves sprag element engagement and rollover resistance in all stock and performance applications — regardless of power level.
The Sonnax race can also be retrofitted with minimal drum machining to the TH400 roller clutch and sprag-style drums, where the extra race thickness adds to durability and expands clutch stack-up options when using a thinner intermediate clutch backing plate such as Sonnax #34144HD-01.
