We're running a pinto mini stock at a dirt track here in CA. Looking for a trans that came in 75 & 76 pinto wagons, the german 10 bolt topcover, screw in shifter type with a 2.57:1 second gear. Unfortunately, there is no tag# or anything else to ID this trans; the only way to determine if it is the 2.57 trans is to put it into second and see if 2.57 turns of the input gives 1 turn on the output