Differential bolt size??
#1
#2
It's a 1/2" square, like on a 1/2" driver. I've never put anything on the threads. Get a nice fluid pump to put the new fluid in, like this:pump . Don't bother with the ones that screw onto a bottle, everything just falls over and spills under your truck and on you. Remove the fill plug first so you don't drain the diff and then discover you can't remove the fill plug for some reason.
Last edited by smokeyrabbit; 07-29-2009 at 05:43 PM.
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#8