Technical '55 Chevy 3-speed od

There’s a current thread here on the BW o/d’s. Pretty much the same for the R10 and R11 except for torque capacity. Take note of Ted Eaton’s comment about driving around town with it engaged and freewheeling.

There’s a couple links that may be duplicated here, but maybe some additional info. These units were very common on Ford’s, I think the T-85 R11 was used as late as the 406’s, but most used the optional 4 speed.

http://forums.y-blocksforever.com/Topic141905.aspx