Owners on RimPictures run 18 to 20-inch wheels on the Buick Grand National. Every figure on this page is aggregated from the 3 verified, owner-reported builds listed below (1986–1986) — it shows what owners actually run, not a fitment guarantee.
3 verified builds
Wheel sizes owners run
Diameters
18 to 20 in stated on 3 of the builds below
Front widths
8 to 8.5 in stated on 3 of the builds below
Rear widths
10 in stated on 3 of the builds below
Widths, any axle
8 to 10 in stated on 3 of the builds below
Builds per diameter
18-inch1 of 3 builds
19-inch1 of 3 builds
20-inch1 of 3 builds
Most common wheels
Wheel brands
Boss1 of 3 builds
Boze1 of 3 builds
HRE1 of 3 builds
Wheel models
Boss 3381 of 3 builds
Boze Forged Mesh1 of 3 builds
HRE 895R1 of 3 builds
Tire sizes owners run
245/35R191 of 3 builds
245/35R201 of 3 builds
245/40ZR181 of 3 builds
275/30R201 of 3 builds
285/35ZR181 of 3 builds
305/30R191 of 3 builds
Tire sizes are stated on 3 of 3 builds.
Fitment figures are owner-reported on the original posts and aggregated here for research. They are not a guarantee that a setup will clear your exact car — always confirm diameter, width, offset, tire size, brake clearance, and suspension before buying wheels. Open any build below for its complete specifications and original source.
