Got a chev 6.5 turbo in my GU love it I have the problem of the manual box is on the way out now going the Auto that is behind these motors from new the 4L80E just wondering if anyone has this conversion and what rpm I could expect I have 3.9 diffs so I am getting pretty good fuel results for the size of the motor well I think so.If you can help out would be good and who done your conversion would also be an advantage.