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I got rid off all my 4-speed stuff and even buried some aluminium cases out"behind the Hogpen",Bring your metal detecter and a shovel and I'll point you in the right direction.


Ha, Ha, No thanks. I'm content with what I have. I'm just looking for info. I did pick up an 18 spline, "full out" crash box last summer. It's totally different than the current "slick shifted" trannys. Different gears, sliders, etc. Real big "cogs" on the gears. None of the gears would interchange with a slick shifted unit.
Thanks for the info.




The bigger splines sound similar to an old Doug Nash "Pro-shifted" Hemi 4-speed I used to run. The slick shifted sliders have every other tooth milled off. The Pro shifted have two out of three teeth milled out and the pro-shifted collars on the gears are the Doug Nash high strength nickel alloy parts with the wider teeth. It was a little more durable than the teeth on a stock collar. I heard from an old pro-stock racer who knew Ronnie Sox that Sox used to run a slick shifted 3.09 first gear ratio 23 spline trans. I guess eventually higher strength parts were developed...