I did a quick search and came up with nothing. My question is: Was the 700R4 tranny ever offered in a 3/4 ton p/u? A guy is selling a 83' k20, he says it has a 700r4 in it. I made a point of asking him again, he said its a 700r4. I though they only came in K5's and K10's.... Anyone know for sure?