This invention is a spacer that has a plate portion with a U-shaped opening in one end and a foot portion attached to the opposite end. This spacer can be passed through the inspection opening or port of the bell housing of a transmission with the plate portion being inserted between the clutch brake and the transmission housing with the drive shaft disposed within the U-shaped opening in the plate. The foot portion is bolted to the bell housing to hold the spacer in place. The spacer has enough thickness that when the release bearing presses on the clutch brake, the clutch brake will engage the spacer and press the same against the transmission housing to make a worn clutch brake once again operate normally.