I will need to get the specifics from my friend pulling his 4.10 gear out going to a 4.30. It has the 35 spline Mosser axles, how is that spelled. He will probably want to sell the old gears and the Detroit Locker if anyone interested. He has been turning in the 160's in quarter and has a $10,000 match race coming up. He has an all steel 66 GTO with power glide and 10 point cage and 4 link rear. Yes it is still Pontiac power. It is still street legal but no way could you afford the fuel at 5 to 7 gallons of the good racing fuel per run at the strip, lol. It is a monster. I think 14 to 1 compression.
David