Introduction/700r4 problem

[silversnail86]

I'm new here so let me just say Hello to everyone. I just bought my first Chevy, it's an 86 c10 lwb "low milage motor" "forged bottom end blah, blah, blah. So far i know its a 3932386 block and 416 heads not sure weather it is a 302, 327, or a 350 though, but well see.

Anyway it has a 700r4 and the T.V. cable is tied on to the carb with a wire. Horrifying right? I ordered Jegs setup today. Obviously my shifts are a little screwy. I know for a fact this truck just went from Montana to California and back very recently with this setup, so I've been driving it. Most of the time it acts ok, but on a cold morning I start it up let it (force it to) idle for about 2-3 mins (no choke) drop her in reverse and it makes a squeal or grind noise for 2-3 seconds before it shifts then when I give it a little gas to back up the slight slope in my driveway the noise goes away. I have heard it while warm in reverse as well, but it shifts normally and the noise is quieter. So I was wondering if anybody has any idea of what may be causing the noise.

I changed the filter today and the pan had a solid inch thick layer of s#@t around the bolts. So I know it hasnt been opened up in a long time, and to my suprise the inside of the pan was near clean just a credit card sized pile of black mush and a small amount of shavings on the magnet.