Loose Center Cap Retainers on OEM Steel Wheels

[unka2m]

I know this is an old thread but I ran into this issue after buying a used 2006 Duramax so just in case others are looking, here is what I did when the plastic lugs were too short to thread onto the steel lugs on steel chrome OEM rims. There are four standoffs on the back of the center cap that have black inserts in them that are what contacts the wheel when the plastic nuts are tightened. I pulled out the inserts and using a Dremel tool with a cut off wheel, cut off approx. 1/8" of the 4 standoffs on each cap. Then cleaned the plastic shavings from the standoffs and reinserted the inserts back in the standoffs. The shorter standoffs now let the plastic nuts thread perfectly on to the lug nuts.