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GM Hub extenders for '90s steel wheels
The Hub extenders that I make to facilitate the use of 16" GM steel wheels from a 1 Ton GMC or Chev Truck before they went to metric specs. Don't know the exact years but in the late 90's for sure.
When you use these wheels on our GMC's and you are using the bigger calipers or even in some cases when the rotors are new with the stock calipers and thick ceramic pads, the calipers will drag on the inside of the wheel. The spacers move the wheel outboard, and the Hub extenders move the hub centering feature out and center the steel wheels with the hub. They carry no load to speak of, their purpose is to center the wheel. The studs and nuts clamp the wheel, spacer and hub together as a very sturdy unit.