I have an OBS with a ZF-5 42. The factory gears were 4.11 with 33" tires. I have owned the truck for 24 years, about 5 years ago I had 3.55 gears installed, before at 2000 RPM in OD I was at 58 MPH, now at 2000 RPM I am at 70 MPH, but I could no longer start off in second gear. I had to always...