Anyone know different the bellhousings on the R1 and R2 are? Also, how much abuse is too much for an R1? What's the most torque and hp it'll take?

 

The difference between an R1 and R2 is Ranger, explorer, mazda versus an F150. The f150 shares anything with an E40d or the current trans. Not interchangable.

HP and abuse i cant answer. But mine has taken 207 hp like a champ.. Along with beating the crap out of high rpm shifts.