This was an experimental idea to swap a 2017 tr580 in to a 2013. doing so gave us a 4.11 front gear and 3.90 rear so we swapped the rear diff out for a 4.11 manual. which did you know they use a different internal spline count then the automatic counterparts.
this is an oddball of a car. we upped the gear ratio to 4.11 from factory 3.90.
we did the swap because the transfer case was having some kinda issue so since we would have had to pull the transmission anyways to work on it we figured lets just swap the whole thing out.
