Getting my trunnion WD hitch tomorrow & I'm wondering what to use for lube where the bars go into the hitch head. I have some 80w90 gear oil & if it's heavy enough I'll use that. Thanks.
you can use oil if you like I prefer a dab of wheel bearing grease on the mateing surfaces as well as the ball. most any brand will do. clean them up with mineral spirits and a rag now and then then re lube