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I am curious what the variations are between an alternator that is on a M939a1 NHC250 versus a M939a2 8.3l turbo. Can they be used interchangeably with small mods? Is it just a matter of using different pullies? Or is it mounting bolts as well? Thanks for the help.

Curious if anybody has experience using biodegradable hydraulic oil instead of veggie oil or waste veggie oil to make biodiesel. The biodegradable hydraulic oil is made from vegetable oil but has other detergents in it as well. Worried that the detergents might cause issues. Does anybody know...

Hi all, I am new here and newer to the world of military metal. I just bought my first last week, a M929a1 from Indiana. Yes... I am hooked, and am very happy with the truck. So my question: I have been reading the operators manual an I see it says the oil pressure should be 15 psi when at...