TreadCompass

GMC C2500 Suburban Lug Nut Torque

The GMC C2500 Suburban lug nut torque is 140 ft-lbs (190 N·m) for 1992–1999 and 120 ft-lbs (163 N·m) for 1979–1991.

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GMC C2500 Suburban · 1979–1999

The spec changed over the years. Pick your year above, or find it here:
1992–1999140 ft-lbs · 190 N·m
1979–1991120 ft-lbs · 163 N·m
  • ✓ Tighten in a star pattern, in two passes, with a torque wrench (not an impact gun)
  • ✓ Re-check the torque after the first 50–100 miles
  • ✓ Confirm against your owner’s manual; aftermarket wheels can differ

Source: TreadCompass vehicle fitment database. Page updated November 2026. Specs can vary with aftermarket wheels and lug hardware, so always confirm with your owner’s manual.

Factory tire sizes for the GMC C2500 Suburban

Compare prices across retailers for your size.

235/85R161979–1991 · Compare prices →245/75R161992–1999 · Compare prices →

Other GMC models

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GMC C2500 Suburban lug nut torque FAQ

What is the lug nut torque for a GMC C2500 Suburban?

The GMC C2500 Suburban lug nut torque is 140 ft-lbs (190 N·m) for 1992–1999 and 120 ft-lbs (163 N·m) for 1979–1991. Tighten in a star pattern with a torque wrench, then re-check after the first 50–100 miles.

Do all C2500 Suburban trims use the same lug nut torque?

Yes. Every C2500 Suburban trim in our database uses the same lug nut torque for a given model year.

Has the GMC C2500 Suburban lug nut torque changed over the years?

Yes. It is 140 ft-lbs for 1992–1999 and 120 ft-lbs for 1979–1991. Pick your year above to see the exact spec.

What size tires come on the GMC C2500 Suburban?

Factory tire sizes include 235/85R16 (1979–1991) and 245/75R16 (1992–1999). Check the sidewall of your current tires to confirm yours, then compare prices for that size above.

New to torquing wheels? See how to torque lug nuts and common questions.