231 HD Std. All - Advance Adapters Heavy
Duty kit and Tera-flex
In 1994 and older applications, you will need to remove the bearings which are in the synchronizer hub assembly/chain sprocket. This is a simple procedure which can be accomplished with a hammer and drift.
In a 1995 and newer applications, there are no bearings to remove and the replacement main-shaft is a direct install into the synchronizer hub assembly/chain sprocket.
This is our most popular SYE kit. It uses a new output shaft that is
much larger for greater strength.