yeah, if youre not doing a lot of drag racing and like a lot of freeway driving, go with an overdrive. i love my muncies, they are tough as nails, and drive and shift hard, t10, just think of that as a muncie with a little more on it. strong trans as well- its taken alot of daily pounding powershifting and drifting
t5-should work in a z pretty good, until you get traction-if i could get one id run it.
wct5-can take a little more beatings with ok traction-definitely must be nice.
t56-great great trans right there , double overdrive, you bearly see sixth unless you have a low mid type motor setup, also will not not pay 1500 for a used trans.
i like the dark horse tremecs over all of them, next to a richmond 6 speed-my favorite favorite trans of them all, because they will bolt up to my lakewood scattershield
the t5 and wct5 ive heard can be had cheap, i dont know, id rather not buy a used trans unless i could some type of verification.