The warning against "extreme pressure" oils refers to lubes designed for rear axle applications. Many of these contain sulfur compounds that are corrosive to some of the synchro components. --Glen At 03:43 PM 3/3/2008, you wrote: >I forgot to ask -- what's the best lube to put in this >gearbox? The TSM says "no extreme-pressure oils". I'm not sure >what that really means, and it's nearly impossible to google >search it because it's both a technical phrase and marketing >phrase. And who doesn't want "extreme"? > >I assume the TSM is referring to particular metal-based >additives, not some STP-like scam. > >It'll have old metal, but new seals (the main reason this box >is apart). > >It probably doesn't matter I suppose, as heat isn't an issue, >nor is extreme gear-tooth pressures (let's be serious) and the >biggest forces are clutch shaft side-load and first/reverse >shifting where no oil will solve the problem. But since we're >talking about $20 vs. $10 for something that will be in there >for a decade, I'll spring for the extra! >_______________________________________________ >Amc-list mailing list >Amc-list@xxxxxxxxxxxx >http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list