I have an 83 ish cab truck with the 22r on propane and 36's and stock everything else. I plan on new 5.71 ring and pinion with 4.7:1 t case twin stick kit. I was just wondering how big a tier I could run before it'll snap stock axel shafts. I also plan on hydro stear and cromeolly shafts as well. Thanks for the input and advice