Four numbers decide it: bolt pattern, hub bore, diameter and width, and offset. Bolt pattern and hub bore have to match your vehicle exactly or the wheel will not mount. Diameter, width and offset determine whether the assembled wheel and tire clears your suspension, brakes and fenders. Our wheel fitment guide walks through all four in order, and every product page lists these specifications so you can confirm before you buy.

Usually you can go up one size on a half-ton truck with nothing more than a leveling kit, and often the factory size has a little room already. Going from a 33 inch to a 35 inch tire almost always needs a leveling kit plus some trimming at the front bumper corners. 37 inch tires need a real lift and typically a re-gear. The limiting factor is rarely the fender opening, it is the inner fender liner and the control arm at full steering lock and full suspension compression.

If your vehicle has direct TPMS, which means it displays individual tire pressures, then yes. Each wheel needs its own sensor, and the vehicle needs a relearn procedure so it knows which sensor sits at which corner. You can use OE sensors or programmable universal sensors, which are usually cheaper and cover more applications. If your vehicle only shows a generic low pressure warning light, you likely have indirect TPMS and need no hardware in the wheel.

Load range describes how much air pressure a light truck tire is built to hold, and therefore how much weight it can carry. Load range D is roughly an 8-ply rating and load range E is roughly a 10-ply rating. Load range E carries more weight and resists sidewall flex better under a trailer or a heavy bed, at the cost of a firmer ride. If you tow regularly or run a three-quarter-ton or one-ton truck, load range E is usually the right answer.

Replace all four whenever you can, and treat it as mandatory on all-wheel drive vehicles. Tires of different tread depths have different rolling diameters, and on an all-wheel drive system that difference is read as wheel slip and can load up the center differential or transfer case. On two-wheel drive vehicles you can replace in pairs, but always put the new pair on the rear axle regardless of which wheels drive the car, because the rear losing grip first is much harder to recover from.

Quality hub centric spacers installed correctly do not cause failures on their own, but they do change the load geometry. Moving the wheel outboard increases the leverage on the bearing, so a large spacer combined with a wide wheel and an aggressive negative offset does add measurable load. Use hub centric billet aluminum spacers that locate on your hub, use bolt-on style spacers for anything 1 inch or thicker, confirm you still have full thread engagement on the studs, and torque properly.