I am looking for a transmission to build for the CSX. Not super picky, Slight bias towards the '3.77 style' 523/543 but that is not a deal breaker hardly. A 3.85 or 3.50 final drive would be ok as well. 568 considered as well but I'll be blunt and say I will not be paying big $$$ unless your ready and willing to remove the shifter housing and take a few pictures to prove its not ragged out on the speed gear clutch teeth. I am at 20659, will drive ~4hrs~ in any direction.
Thanks