Please Help with Powerglide problem

[hippy]

Hello,
I installed a good working aluminum case powerglide that came out of my friend's 11 second Chevy II into my 65 Chevy II. It was working fine in his car & worked fine in my car at the very first. Now it does not have drive. It has reverse & low, but engine just flares up on the shift & it will not pull in drive.
I have driven it approximately 10 miles. My car has a blown 350 with about 500 HP. I drove it hard, holding it in low & then shifting into drive. Then all of a sudden, I no longer had drive?
I pulled the pan & the fluid smelled burned & there was metal & black trash in the pan. I know it is wasted & I have sent it out for a re-build.
The only thing I could find wrong in the installation was that my shift linkage from the shifter was not adjusted correctly. When the shifter was in low, the trans was actually between low & drive & not in the low gear detent.
My question is, could the fact that it was not fully in the low detent cause the burn up problem? I did wind it up several time in what I believed to be low gear, then manually shifted into drive at full throttle.
Thanks,
Hippy

[Hutch]

That is very likely the cause or at least part of it. Glides are very sensitive to shifter adjustment. I would imagine if low was out of whack then high would be off the same amount which is even worse.

Hope this helps, Hutch