Originally Posted by
TheWhiteBeast
There are 2 different ZF's. A close ratio for gassers and a wide ratio for diesels. If you have a wide ratio hooked to a 5.0, I am so sorry.
and how would he use a wide ratio behind a 5.0? the bolt pattern wouldnt work at all.
you need to do a few things here. first figure out what gears you have out back and in front. I wouldnt use 4wd until you confirm they are close.
What size tires are you running? also you shouldnt be using first gear unless your wanting to CRAWL. first is a granny low gear similar to the old NP435 4speed trannies. and like mentioned this is a HD tranny geared lower then the m5od you previously had.