PPV Hub cap spacer

[CrashTestDummy]

Might anyone have the P/N for the aluminum spacer for the hub cap on a PPV? In spite of the extra care _I_ took removing the hubcaps before taking out Tahoe PPV to get new tires, I've lost one. Looking for the P/N on any GM site has proven frustrating. Thanks.

[CrashTestDummy]

Update: Zero luck finding just the spacers. Looking up the. wheel parts for our 2018 Tahoe PPV shows the hubcap, GM 23287648, which included the spacers, bolts and o-rings. So a spacer seems to come with two spares, spare bolts, o-rings, and, oh yeah, a hub cap.

I've ordered some aluminum spacer stock from McMaster Carr along with a restock of my o-rings. Since I could find nothing with a 5/16" ID hole, I've ordered them based on ID and length. I'll drill them out 5/16", counter-sink both ends and see how they do. Five spacers, 200 o-rings, a new 5/16" drill bit, shipped, were still less than a PPV hubcap. And for me, like stuff from Summit, the parts seem to arrive before I order them. So I should have them by about Tuesday.

[CrashTestDummy]

As-promised, here's what I did:

When we took our '18 Tahoe PPV in for new tires, I removed the hub caps myself for safe keeping while the tire monkeys did their thing. When we got it back, and I was checking the wheel nut torque and reattaching the hub caps, I discovered that one of the dam spacers had wandered off. We searched for it for a while, but turned up nothing. So I temporarily. bolted things together while I could order a couple of new spacers.

In checking around, it appears that the only way to get the individual spacers is WITH a new ~$75.00 hub cap!! All images on the GM web stores catalogs show the hub cap, which shows the spacers AND bolts, but none of those parts seem to be listed separately. One of the guys on the Tahoe/Yukon forum got some aluminum spacers and modded them to fit. I did the same. Here's what it takes:

McMaster-Carr P/N 92511A091 - Aluminum 5/8" OD x 7/16" L x 1/4" ID spacer
McMaster-Carr P/N 9452K19 1/4" buna o-ring package.

I already had the bolts, which IIRC, are 5/16"X3/4" flanged stainless USS bolt.

The spacers have a counter sink on each end. I made that by drilling a couple of shallow holes with a 29/64" drill (you can probably use a 7/16, but 29/64 fit the counterbore perfectly). I then drilled the center hole out to 5/16". Since I got 5, I went ahead and modded the whole set, even though I only need 1. The rest will go into spares.

The spacers from McMaster-Carr are actually about 1/32", or so longer than the OEM spacers, but this is about as close to a fit as I could find. I'll probably replace all 3 of the spacers on one hub cap so it's spaced evenly, but I really doubt that little bit of difference won't matter much.

Picture attached. The spacer, as-received, is on the. left. Next to it is the spacer after the 'counter sink' drilling, and on the far right is the finished spacer. The OEM spacer is below the other 3.

hub cap spacers.JPG (165.73 KiB) Viewed 512 times