Quote: If you have not broken a 23 spline box you either have very little traction,a slipping clutch, or not enough horsepower
NEVER broke a 2.66 trans. Did break input shafts on 2 3.09 transmissions. I guess my slicks are slipping, along with my clutch and I'm down on horsepower......... what to do to get 2 1/2 tenths and a 10 second run ????????
Put some "GOOD" heads and compression to that car and see what breaks next the Dana or the 23 spline box Ask anyone who builds them on regular basis "what will break this trans" They will tell you,too much weight,horsepower or traction will kill it you pick which one applies Gus
the Dana or the 23 spline box 
Ask anyone who builds them on regular basis "what will break this trans" They will tell you,too much weight,horsepower or traction will kill it 
you pick which one applies 
