FRENES

Wheels from Pontiac Grand Am on Chevrolet S10: compatible?

Yes, the hub is identical

Same 5x120.65 PCD and same 70.3 mm centre bore: wheels from Pontiac Grand Am bolt on and centre on Chevrolet S10 without rings. You still need to check the offset and tyres, detailed below.

Pontiac Grand Am1964–1980Chevrolet S101982–1993
PCD5x120.65 / 5x100 / 5x1155x120.65
Centre bore70.3 mm70.3 mm
ThreadEcrous - 7/16 - 20 UEcrous - 12x1.50
Original wheels ≈6.5Jx13 ET42
≈6Jx14 ET41
≈7Jx15 ET8
≈7Jx15 ET42		 ≈6Jx14 ET
≈6.5Jx15 ET13

≈: width estimated from the original tyre size.

Wheel by wheel: offset and tyres

Each original wheel from Pontiac Grand Am is compared with the one from Chevrolet S10 of the same diameter: how much closer the wheel gets to the shock absorber or how far it sticks out of the wheel arch, and whether the tyre keeps the same overall diameter.

  • ≈7Jx15 ET8 · 225/70R15 — Check on the car

    Compared with the original ≈6.5Jx15 ET13 on Chevrolet S10: shock absorber side +1.3 mm, wheel arch side +11.4 mm, tyre diameter +1.1 %. Comparison for guidance only (estimated width). Check in detail

  • ≈7Jx15 ET42 · 215/60R15 — Check on the car

    Compared with the original ≈6.5Jx15 ET13 on Chevrolet S10: shock absorber side +35.4 mm, wheel arch side −22.7 mm, tyre diameter −7.2 % : fit it with the original tyre size of Chevrolet S10 (205/75R15), not that of Pontiac Grand Am. Comparison for guidance only (estimated width). Check in detail

  • ≈6.5Jx13 ET42 · 205/70R13

    Chevrolet S10 has no 13-inch original wheel in our data: check the approved fitments and caliper clearance.

  • ≈6Jx14 ET41 · 185/75R14

    Chevrolet S10 has no 14-inch original wheel in our data: check the approved fitments and caliper clearance.

Before fitting the wheels

An identical hub is not enough: offset, width and diameter change the position of the wheel, and larger calipers can touch a smaller wheel. Original wheels often use bolts or nuts with a specific seat: keep the fixings intended for the wheel, with the thread of Chevrolet S10 (Ecrous - 12x1.50), tightened to the torque shown on its vehicle page. Finally, check that the size is among the approved fitments for your vehicle. This comparison is for guidance only: have the fitting approved by a professional.

And the other way round: wheels from Chevrolet S10 on Pontiac Grand Am?