Just found the well-hidden 11th grease point on the upper part of the idler arm. Need to take off the front skid plate just to feel it with your hand. Can't see it at all, as it is recessed in a well of steel around it.

Impossible to lube, as it has a straight fitting, with about 1/2" space around it before it contacts a wall. I need to replace it with a 90 degree fitting. So I took the nipple off. But my 90 degree zerks (grease nipples) do not fit.

Anyone know the thread pitch on the grease fittings on a 07 H2? There are hundreds of sizes available in metric, standard, self-tapping, etc.
I called the local auto parts store, and they don't know. Help!

 

Call the Hummer dealer...they should be able to tell you.

 

Take the one you took off the H2 to the hardware store and find a nut to fit on the thread pattern, then get the zerk matching that thread?

 

Hummer dealer does not know the thread pitch on any part. They strictly go by part numbers. The threads are tapered, and not so many, so putting a nut on it did not work. But thanks for the ideas guys!

But I found out that the thread pitch is 28G or 0.9 metric. Both are almost the same and will interchange. Got it in there. I could finally lube that point.

 

Ok, figured it out. It is a 0.9 or 28G, both are really close and either the standard thread or metric will fit.