Thanks for the input, guys. I'm running Valvoline synthetic oil in #3618 and since that's where I get my oil changed, I was going to let them install the Synchromesh that I was going to pick up at the Chevy dealer. But if you guys think the Valvoline synthetic ATF has just as smooth results and is obviously a lot cheaper than $9.42/qt. then I may just let them do the entire job.
Greg
Greg