twin stick is just an auxillary transmission, but no common automotive or light truck transmission that will bolt to a 350 can benifit from an aux box. The ratios will be simmilar and ither will end up with a 1:1 in 4th.. Unless you put somthing like a 4-53 Diesel in it..
if it's just for the cool factor. couple an old 3spd to it. you could never be in the wrong gear
Last edited by matt167; 12-06-2011 at 04:32 PM.