Good questions. If you have a ¾-ton truck like the RAM 2500 or Ford F-250, go with LT Load Range E (LRE) tires to ensure you’re matching or exceeding the OE tires’ Load Index. If you have a half-ton truck (F-150, RAM 1500), mid-size pickup (Tacoma, Colorado), or an SUV (4Runner, Jeep Cherokee), avoid Load Range E. Instead, stick with Load Range C or avoid LT sizes altogether. Putting LRE tires on these applications is generally overkill, often resulting in a decrease in power, fuel economy, and overall vehicle longevity. Your tires should enhance the capability of your truck, not detract from it. Whichever way you go, please consult a trusted tire installer to discuss the tradeoffs between LRE sizes (towing, off-road durability) and LRC / non-LT sizes (MPG, tread life). With that said, we’re confident that every A/T3W is built to perform both on and off-road. Every size has been rigorously tested for off-road durability, and all sizes come with a 55,000-mile Tread Life Warranty. Light Truck (LT) = Built for trucks. Includes LRC, LRD, LRE, and LRF-rated tires. Load Range C (LRC) = Equivalent to 6-ply rated. Not ideal for heavy duty pickups that tow and haul. Load Range E (LRE) = Today’s equivalent to 10-ply rated. Great for heavy duty towing and hauling.