The jump from 35-inch to 37-inch tires is one of the most debated decisions in the truck and Jeep community. On paper, it is only two inches. In practice, those two inches affect everything from the lift kit you need to your fuel bill to how confidently your truck handles obstacles on the trail. If you are weighing 35 vs 37 inch tires for your build, this comparison covers the real-world differences that matter.
A 35-inch tire has an overall diameter of approximately 35 inches. A 37-inch tire adds one inch of ground clearance all the way around — one inch more from the axle to the ground and one inch more from the axle to the fender. That single inch of additional clearance sounds small, but on the trail, it is the difference between dragging your differential on a rock and clearing it cleanly.
The width difference is typically minimal. Both sizes commonly come in 12.50-inch widths, so the footprint is similar. The main dimensional change is height.
This is where the practical differences start to add up.
Most trucks and Jeeps can fit 35s with a moderate lift:
35-inch tires represent the upper end of what you can run with a basic spacer lift or budget suspension lift on most platforms.
Stepping up to 37s generally requires more suspension modification and potentially body modifications:
The additional lift height needed for 37s means you are generally stepping up to a more complete (and more expensive) suspension system. Budget spacer lifts usually cannot clear 37s without rubbing issues. here
The cost difference between 35s and 37s goes beyond the price of the tires themselves.
A set of four 37-inch tires typically costs $200 to $600 more than comparable 35-inch tires from the same brand and in the same tread pattern. This adds up over the life of the vehicle, since you will buy multiple sets of tires.
The bigger cost difference is in the supporting modifications 37s often require:
The total cost premium for running 37s over 35s — including all supporting modifications — can range from $3,000 to $8,000 beyond the base tire cost.
37-inch tires are heavier and have more rolling resistance than 35s. The real-world fuel economy difference is typically one to two mpg, depending on the tire brand, tread pattern, and driving conditions. On a truck that gets 16 mpg with 35s, you might see 14 to 15 mpg with 37s.
Over 15,000 miles per year at $3.50 per gallon, that one to two mpg difference costs roughly $250 to $550 per year in additional fuel.
35-inch tires are generally more livable for daily driving. They are lighter, create less road noise (assuming the same tread pattern), and place less stress on steering and suspension components. A truck on 35s feels closer to stock in terms of steering effort, braking distance, and acceleration.
37-inch tires are noticeably heavier, which affects acceleration, braking, and steering weight. The additional rotating mass is perceptible in everyday driving. Most owners adapt quickly, but if daily comfort is a priority, 35s have an edge.
37s spin at a lower RPM at highway speed (assuming no regear), which can make the engine feel lazy and the transmission hunt for gears. After a regear, highway RPMs normalize, but you have added the cost and complexity of the regear.
35s work well with stock or mildly modified gearing in most applications.
This is where 37s earn their keep.
That extra inch of clearance under the axle (and everywhere else) matters on the trail. Rocky terrain, deep ruts, and obstacles that scrape a 35-equipped truck pass harmlessly under a truck on 37s. For serious rock crawling and trail use, ground clearance is one of the most valuable commodities.
Larger tires improve approach and departure angles, allowing the truck to climb steeper obstacles and descend steeper drops without the bumpers contacting the terrain. here
The slightly larger contact patch of a 37-inch tire can provide marginally better traction in certain conditions, but the difference is small compared to the advantage of proper tire selection (tread pattern, compound) and airing down.
The extra height keeps the axle breather and differential vent slightly higher, which adds a small margin of safety in water crossings.
Larger, heavier tires accelerate wear on:
The wear increase from 35s to 37s is noticeable but not dramatic when the supporting modifications (regear, proper lift, alignment) are done correctly. Neglect those supporting modifications, and 37s can chew through components significantly faster.
35-inch tires are the right choice if:
37-inch tires make sense if:
At Redline Auto Creations, we have built trucks with both sizes and everything in between. Our honest recommendation: if you are unsure, start with 35s. They deliver significant improvement over stock sizes with fewer compromises and lower total cost. If you outgrow them on the trail, upgrading to 37s later is straightforward — especially if you plan your lift and wheel selection with that future upgrade in mind.
If you already know you want 37s, commit fully. Do the regear, do the proper lift, upgrade the steering, and budget for the supporting modifications. Half-measures with 37-inch tires create more problems than they solve.
Ready to size up? Visit Redline Auto Creations at 11626 N Florida Ave in Tampa, call (813) 544-4009, or here to discuss your tire upgrade.
At Redline Auto Creations, we specialize in crafting custom vehicles with precision and passion. From wheels and tires to suspension, performance upgrades, and custom designs, we bring your vision to life. Contact us today and transform your ride.
© 2026 Redline Auto Creations LLC. All Rights Reserved.
.png){kind=icon}
