The Stovebolt Site Forums The Shop Area Engine Shop Was an 3spd OD available for torque tube rears?

Frank50, Installing a regular Chev overdrive with a Borg Warner overdrive back section isn't very difficult in a 3/4 ton because your 3rd member has an open drive shaft. Having an open drive shaft built from the transmission to the center bearing is not that expensive. The Borg Warner unit was .70 OD. That works out real well with the 4.56 rears. Of course more horse power helps with od, something like a GMC 270 or 302.