Welcome to the Stovebolt
When viewing the rear of the transmission is there a a square or round peg at the 9-o'clock position (drivers side). If it's the square peg than it had the exteranal band, if it's a round peg it had the Dual Shoe brake.
These parts have been out of production for decades. Place an ad in the "Parts Wanted" section here on the Bolt or search your local bone yard...you might get lucky
Mike B
