I know this topic has been posted multiple times but getting ready to fire up the 71 runner for the first time tomorrow, everything is finally ready except coolent and tranny fluid. It's a 727 just rebuilt and tonight I just got back from buying eight quarts of Type F and plan on using it. I have heard some of you guys say it makes for firmer shifting. I have never used Type F and want to be sure I'm not making a mistake before I dump it in. Tranny is bone stock with the 340 converter. Just need alittle reassurance. Thanks