GMC Sierra 1500 Tire Size Guide

Selecting the right tire size for your truck can be a hassle, especially after modifying the suspension. The right tire fills out the wheel wells while allowing lock-to-lock turning and full articulation without rubbing. Unfortunately, this “perfect” size varies by vehicle generation, body configuration, and drive configuration. 

If you’re considering upgrading your truck with oversized tires but aren’t sure which size best suits it, you’ve come to the right place. Here at RealTruck, we handle the hard work for you. In this edition of our tire size guide series, we’re looking at GMC’s flagship half-ton pickup—the Sierra 1500. 

Follow the charts below to determine your generation and sub-model’s factory tire size and alternative sizing options after installing various leveling and lift kits.