What year book do you have? AMC used a vile smelling liquid that was thicker then auto trans fluid. The aftermarket and rebuilt shops spec 70W-90 in non world class transmissions. The gears ride directly on the shaft and atf is not thick enough to support them and will tear the shafts up over time. I actualy have Mobile one 15w-50 Mobile one Synthetic in my non world class trans. I admit I don't know if it sufficient for protection, but it has been working fine so far. John Elle pointed me towards it. I believe it works well in both world class and non world class. I would not use it in a world class myself, too many stories of the synchros delaminating. If starting with a fresh trans I was going ot use long term, I would do more research and make a definite decision! Perhaps, Redline or similar Manual trans lube would be a better choice. What I have read leads me to believe using anythign other than atf or a sepcific fluid designed for the synchros in world class can lead to problems. The non world class uses simple old brass synchros. -- Mark Price Morgantown, WV 1969 AMC Rambler, 4.0L, EFI, T-5 " I was different before people dared to be different" -------------- Original message ---------------------- From: Todd Tomason <jayscore@xxxxxxxxxxxxx> > I'm not sure what you're saying here Mark. According to my Chilton's book > (not the best source I admit) the T4 and T5 use Dexron II. It specifically > says not to use gear lube. > > Todd > > On Monday 24 September 2007 14:11, Wrambler242@xxxxxxxxxxx wrote: > > > One of the killers is peole get confused and put trans > > fluid in the non world class trans. It needs Gear lube! 70W-90, IIRC. trans > > fluid will kill it! > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://www.amc-list.com/mailman/listinfo/amc-list _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list