> the tranny kept popping out of 3rd gear. (it has a 250/3 speed column setup
> hooked to the original trans
Either of 2 things: Shifter fork on
inside of side cover is worn out, or your input shaft splines to syncro drum
are worn. That one would mean finding a better syncro drum and input shaft.
I wrote an article about this a few weeks ago and sent it to Vintage
Chevrolet Club of Am. I asume you already adjusted the linkage for complete
engagement of high gear.
You can inspect the fork by removing side cover without removing trans from
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