Oldsmobile Cutlass Bolt Pattern, Center Bore & Wheel Offset (1961–1976)
Oldsmobile Cutlass wheel fitment: 5x120.65 bolt pattern, mm center bore; 4x114.3 bolt pattern, mm center bore. OE wheel sizes and offsets for every Cutlass va
- 5x120.65bolt pattern (PCD), most common
- 70.3 mmcenter bore
- M12x1.5 Nutwheel bolt / nut
- 2 guidesmodel years 1961–1976
Bolt pattern by generation
- 5x120.65, 70.3 mm center bore — 1976 (1 variants)
- 4x114.3 — 1961 (1 variants)
Oldsmobile Cutlass wheel specs by year and trim
| Year | Model / trim | Bolt pattern | Center bore | OE wheel |
|---|---|---|---|---|
| 1976 | Oldsmobile Cutlass S | 5x120.65 | 70.3 mm | 15x7J ET0 |
| 1961 | Oldsmobile Cutlass | 4x114.3 | — | 13x4.5J ET0 |
Factory wheel sizes on the Oldsmobile Cutlass
Across the 2 Oldsmobile Cutlass trims with a documented factory wheel, the OE diameter is 13-15 inch, width 4.5-7J and offset ET0. A forged wheel that keeps the bolt pattern and hub bore of your generation (see the table above) and stays inside that offset range bolts on without spacers or hub rings. Going one inch up in diameter with a lower-profile tyre keeps the rolling circumference inside the usual 1.5% tolerance; every extra 0.5J of width moves the outer lip about 6 mm outward at the same offset, and each 5 mm less offset moves the whole wheel 5 mm outward.
Forged wheels for the Oldsmobile Cutlass (5x120.65)
Shop all Oldsmobile Cutlass forged wheels →
Get a quote for Oldsmobile Cutlass wheels
Vehicles With the Same Hub as the Oldsmobile Cutlass (5x120.65, 70.3 mm Bore)
In our database, 62 other vehicle entries from 5 makes use exactly the same 5x120.65 bolt pattern and 70.3 mm center bore. Factory wheels from these cars bolt on and center on the hub without rings; offset and width still have to be checked.
5x120.65 is used by 1.6% of the vehicle entries in our database (101 of 6,503); 63.4% of those also use a 70.3 mm center bore.
Offset and Backspacing: Factory Wheel vs Options
Backspacing ≈ width/2 + ET/25.4 + 0.5 in. "Inward" means closer to the suspension; "outward" means closer to the fender lip.
| Setup | Size | ET | Backspacing | Inward vs OE | Outward vs OE |
|---|---|---|---|---|---|
| Factory (OE) | 15x7J | ET0 | 4.00 in (102 mm) | — | — |
| Flush | 17x8J | ET0 | 4.50 in (114 mm) | +13 mm | +13 mm |
| Maximum | 18x8.5J | ET-5 | 4.55 in (116 mm) | +14 mm | +24 mm |
Hub-Centric Rings for a 70.3 mm Center Bore
A wheel with a center bore larger than 70.3 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 70.5 mm | 70.5 → 70.3 mm |
| 71.6 mm | 71.6 → 70.3 mm |
| 72.6 mm | 72.6 → 70.3 mm |
| 73.1 mm | 73.1 → 70.3 mm |
ANKUSI forged wheels are bored to exactly 70.3 mm for this vehicle, so no ring is needed.
Sources and Last Update
Bolt pattern and center bore were checked against at least two independent fitment references before publication.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
FAQ
What is the bolt pattern on a Oldsmobile Cutlass?
The Oldsmobile Cutlass uses a 5x120.65 bolt pattern on most variants we cover with a 70.3mm center bore. Other generations use 4x114.3 / mm (1961–1961). Always check the exact year and trim before ordering.
What is the Oldsmobile Cutlass center bore?
The hub-centric center bore is 70.3 mm on the most common generation; see the table for variants. Aftermarket wheels should match this bore or use hub-centric rings so the hub, not the bolts, carries the load.
Do all Oldsmobile Cutlass years share the same wheel fitment?
No. The bolt pattern or center bore changed between generations, so wheels are not interchangeable across all years. Use the year-by-year table on this page to pick the right specification.
Which forged wheels fit the Oldsmobile Cutlass?
Any wheel drilled 5x120.65 with a 70.3mm hub bore in the offset range shown on the model guide. ANKUSI forges wheels to order for this exact specification, in 14–24 inch diameters, so no adapters or hub rings are needed.