Hub Centric Ring O.D. 78mm I.D. 70.3mm

One set of 4 hub centric rings with O.D. (outer diameter) of 78mm and I.D. (inner diameter) of 70.3mm. These rings are made of high quality poly carbon. To determine proper fitment you need to do a couple of things. First you need to determine the center bore size, i.e. O.D. of the aftermarket wheel. Contact your wheel dealer if needed. Then find out the vehicle hub size, i.e. I.D. When these match our hub ring description, then they are the right size.

• Buick: Regal 77-on, Century, La Sabre 86-on, Reata, Park Ave 85-on, Rivierra 79-85, 89-on

• Cadillac: Alante 87-94, Deville, Seville & El Dorado 85-on, STS, SLS, Fleetwood 85-on, DHS & DTS CTS 03-on

• Chevrolet: Impala 99-on, Malibu 97-on, Monte Carlo 69-88, 95-on, Corvette 68-82, 84-on, Camaro 67-on, Caprice 71-90, Z28 93-on

• Chevrolet truck: 2wd S10, Sonoma 82-on, Blazer, Jimmy 2wd 95-01, S-10, T-15, 4wd 83-on

• GMC: Buick - Rendevous 01-on, Venture 97-on, Oldsmobile - Shlhou, Pontiac - Transport 90-on, Montana 97-on, Aztec 00-on, Oldsmobile - Bravada 85-on

Fitment and specs

• Outer diameter (O.D.): 78mm, for aftermarket wheels with a 78mm center bore
• Inner diameter (I.D.): 70.3mm, matching the vehicle hub
• Sold as one set of 4 poly carbon rings
• Fits a long list of GM vehicles shown above, including Buick Regal and Century, Cadillac Deville, Seville, and CTS, and Chevy Impala, Camaro, Corvette, and Monte Carlo
• Also covers 2wd S10 and Sonoma trucks and several GM vans

Fit a ring into the back of each wheel's center bore before the wheel goes on; a light push seats it flush. Keep the hub pilot free of dirt and buildup so the ring slides on cleanly. Properly seated, the rings center each wheel on the hub so it spins true at speed.

Common questions

What do O.D. and I.D. mean?
O.D. is the outer diameter, which must match your wheel's center bore, 78mm here. I.D. is the inner diameter, which must match your vehicle's hub, 70.3mm for this set.

Can I reuse these if I change wheels?
Yes. The rings stay in the wheel's bore and can be moved to another set, as long as the new wheels also have a 78mm center bore.