Anybody know how to hold 3rd gear with the 545RFE transmission? We're trying to do some dyno pulls on a supercharged Ram 1500 and we're finding it impossible to get it to hold gear. What gear does the trans default to if unplugged? I've found some add-on controllers but they tend to be pretty expensive.

Thanks.

 

when you unplug the trany it goes into limp mode stays in second gear. . when dueing dyno pulls turn the od or tow haul switch off. this should help