I’m gonna post this to a couple of groups so I can get a few different opinions so don’t be offended if you see the same question on a different site.
I think I’ve probably been in a hundred discussions abouit this subject over the past half dozen years and always walked away shaking my head. And I’ll probably hear the same arguments all over again but I’d like to try it one more time. When dealing with the open drive shaft Universal Joints, all of the Chevrolet Shop manuals call for hypoid gear oil as a lubricant for them. As I’ve said in all of those conversations, back in the day we always used chassis grease at the Chevrolet dealership and at all the service stations that I hung out at. However the manuals do say #90 gear oil. I haven’t been able to find a grease gun that will hold gear oil cuz they just taint sealed up well enough to hold anything as liquid as gear oil. And even if I could find some sort of a gun to inject gear oil into the U-joint it doesn’t seem like the dust seals would actually keep it in the bearing cups for very long.
So come on, lets hear it again,, maybe we’ll turn up something new this time around. I’d like to get it straight from the horses mouth to see what they recommend but I’ve tried to get in touch with a couple of U-joint manufacturers and they are buried so deeply in to the corporate structure you can’t get at them.
Denny Graham
Sandwich, IL
Last edited by Denny Graham; 12/17/2010 5:46 PM.
