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OC12 and dropbox lube?

Southtowns27

New member
Hey all, I've been searching around on here and can't find a definitive answer to the question of what lube do I put in my OC-12 and dropboxes on my 2100? Right now it has gear oil (I think) in the diff case and dropboxes (I didn't put it in there) and that doesn't seem right to me. I want to change the oil and I need to know what to put back in. Thanks!
 

tomelroy

Member
i talked to Petersons in Logan UT and they said to go with a R&O 320 Oil for the oc-12 (w/o aux hyd) and drop boxes.

But other members here say to go with:
Caterpillar TO-4 30 weight
 
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