Has anyone installed an auxilary transmission in a TF truck? And where would one find a 2 speed rear axle for 56 57 6400 electric shift? Will the dropout 3rd member fit in the existing axle housing?
Another question, what kind of rear end ratio are folks using on these bigger trucks to get some decent hiway speeds and fuel economy? Anyone here swap in a big block?
Last edited by Truckrolet; 02/08/2013 11:04 PM.
