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1990 GMC Suburban 2500 tire and wheel sizes, bolt pattern and tire pressure

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 1990 GMC Suburban 2500.

1990 GMC Suburban 2500 tire sizes

Bolt pattern
Fitment tables

3 trims sold in 1990

Open a trim for its factory package and every alternative size, front and rear.

GMC Suburban 2500 C/K series

1973 – 1991 USA market 3 trims

Suburban 2500 350 EFI

190 hp · 5.7L L05 V8 235/85 R16 1 fitment
GenerationC/K series 1973–1991
Power190 hp
Engine5.7L L05 V8, Petrol
Center bore116.6 mm
PCD8x165.1
Thread9/16" - 18 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
235/85 R1616x6.5 ET17 8x165.1TiresRims

Suburban 2500 379 D

145 hp · 6.2L LL4 V8 235/85 R16 1 fitment
GenerationC/K series 1973–1991
Power145 hp
Engine6.2L LL4 V8, Diesel
Center bore116.6 mm
PCD8x165.1
Thread9/16" - 18 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
235/85 R1616x6.5 ET17 8x165.1TiresRims

Suburban 2500 454 EFI

230 hp · 7.4L L19 V8 235/85 R16 1 fitment
GenerationC/K series 1973–1991
Power230 hp
Engine7.4L L19 V8, Petrol
Center bore116.6 mm
PCD8x165.1
Thread9/16" - 18 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
235/85 R1616x6.5 ET17 8x165.1TiresRims
Reading the table

What these columns mean

OE fitment
The package fitted at the factory for that trim.
Alternative
A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
Rim size
Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD)
Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore
Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure
Recommended cold inflation pressure for that axle, in psi.
Staggered
A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size
Lug bolt or nut thread — needed when buying aftermarket fasteners.

Considering a different size?

Run your OE size against the one you want to see diameter change, ground clearance and speedometer error.