I just bought a 55-59 3sp overdrive. I plan to put it behind the 235 in my 31 pickup. I need to get up to speed on this tranny. What are the gear ratios? The rearend has 3:42 gears. It has a small lever thatI assume uses a push/pull cable to operate the overdrive. What is the electic solenoid for and how is it wired up. Thanks
