Chevrolet Silverado 3500 HD High Country tire size
The most common factory tire size for the Chevrolet Silverado 3500 HD High Country is LT265/70R18, on 4 of the 4 year and trim fits listed. Each year below lists the sizes its trims were built with (2015 to 2016). Pick your year and trim to see the tires that fit.
Chevrolet Silverado 3500 HD High Country tire sizes by year
20161 size · 2 trims
LT265/70R18load index 124/121, speed rating S
20151 size · 2 trims
LT265/70R18load index 124/121, speed rating S
Check your own tire
A trim can be sold with more than one wheel size. The size printed on the sidewall of your current tire, or on the placard in the driver's door jamb, is the one your vehicle has.