Got the 5 speed in,looks like thats gonna help a lot,more so when I get the 33's on it. 4 low still has that good crawl speed (at idle in 4 low you can just about walk around it while its moving)so that part I retained. The over drive helped with the high RPM problem,still won't be no 75 mph stuff but 55 mph I can live with.   Later M.Z.