Slickshift Hemi Superstock gearset for the '66.

Outsider, I used a 23 spline trans because I wanted the 3.09 first gear, easier to launch and better 60 ft. times. The car had a 273 hp with a 904 auto. in it when I bought it, I converted it to a 4spd. The slickshift took a lot of thought to match rpm in up shifts and down shifts so it would not grind on each shift and it clucks and bangs every time you let off or step on the gas do to the extra clearence in the sliders and gears.