i have a spicer 7231D with pto that ive been researching and have found out what gear ratios it has and have even found exploded views of it, but i havnt been able to find out what size trucks it is meant for or its age. i have a 55 1st series chevrolet 6500,261 4spd 2spd hoist bed, that ive thought about trying to use this unit in. what im after is the overdrive,or is there a higher geared 2spd rear that would be a good swap? any info on the unit or any thoughts about this possible retrofit would be gratefully appreciated.
