🛻 Pickup Truck Tire
Size Calculator
Professional pickup truck tire size calculator. Calculate LT (Light Truck) tire dimensions, lifted truck tire sizing (33", 35", 37"), understand load range ratings (C/D/E), lift kit requirements, towing capacity, and find the perfect tire size for F-150, Silverado, RAM, and more.
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Example: 235/45R18
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LT Tire Market Dominance
LT265/70R17 commands 84% of the U.S. light truck tire market. LT tires use Load Range (C/D/E) instead of Load Index. Always choose LT over P-metric for towing over 5,000 lbs.
🛻 Pickup Truck Tire Essentials
LT vs P-Metric Tires
LT (Light Truck) tires have stiffer sidewalls, higher load capacity, and are designed for towing/payload. P-metric tires provide softer ride but lower towing capacity. LT265/70R17 can typically tow 2,000+ lbs more than P265/70R17. If you tow regularly or carry heavy loads, ALWAYS choose LT tires.
Load Range C/D/E Explained
Load Range determines ply rating and max pressure: C = 6-ply, 50 PSI max (1,760 lbs per tire). D = 8-ply, 65 PSI max (2,205 lbs per tire). E = 10-ply, 80 PSI max (2,833 lbs per tire). Higher load range supports more weight but gives harsher empty ride. Half-ton trucks typically use C or D, HD trucks use E.
LT265/70R17 - The King
LT265/70R17 is THE most popular truck tire size in America, commanding 84% market share for light trucks. This size fits F-150, Silverado 1500, RAM 1500, Tundra, and most half-ton pickups. It's the Goldilocks size: 31.6" diameter, good towing capacity (Load Range E: 3,000 lbs per axle), reasonable price ($200-300 each).
Towing Pressure Adjustment
Adjust tire pressure based on load: Empty truck: 35-40 PSI (softer ride, better fuel economy). Light towing (under 5,000 lbs): 45-50 PSI. Heavy towing or max payload: Increase to tire's max pressure (60-80 PSI for Load E). NEVER exceed sidewall max pressure. Always inflate cold before loading.
33" vs 35" vs 37" Sizing
Lifted truck owners often refer to tire 'height': 33" tires ≈ 285/75R16 or 275/70R18 (requires 2.5-3" lift). 35" tires ≈ 315/70R17 or 305/70R18 (requires 3.5-4" lift). 37" tires ≈ 37x12.50R17 or 35x12.50R20 (requires 6"+ lift). Larger tires reduce acceleration, MPG, and stress drivetrain.
Tire Upgrade Paths
Heavy-Duty Upgrade (Load Range E)
Switch from Load Range C/D to E for serious towing capacity
- ✓+1,000-1,500 lbs towing capacity
- ✓10-ply construction for durability
- ✓Better stability with heavy loads
- ✓Reduced tire squirm under weight
- •Harsher ride when truck is empty
- •Requires 60-80 PSI (vs 35 PSI)
- •+10-15% higher cost
- •Slightly lower fuel economy
Plus-Size (33" tires)
Upgrade to 33" tires for aggressive looks and off-road capability
- ✓Better ground clearance (+0.7")
- ✓Improved off-road traction
- ✓More aggressive appearance
- ✓Wider footprint for sand/mud
- •May require 2.5-3" lift kit ($800-2,000)
- •-2 MPG fuel economy penalty
- •Slower acceleration (gear ratio change)
- •Possible speedometer recalibration needed
All-Terrain to Mud-Terrain
Switch to aggressive mud-terrain tires for serious off-roading
- ✓Maximum off-road traction
- ✓Self-cleaning large tread blocks
- ✓Aggressive sidewall lugs
- ✓Excellent rock crawling grip
- •LOUD road noise (70+ dB)
- •-3 to -4 MPG on highway
- •Faster tread wear (30k vs 50k miles)
- •Poor wet road traction
- •Expensive ($300-400 each)
Lifted Pickup Truck Tire Guide
Complete guide to tire sizing for lifted trucks. From 2" leveling kits to 6"+ suspensions, find the perfect tire size for your build without rubbing or clearance issues.
Lift Height → Tire Size Chart
| Lift Height | Max Tire Size | Common Sizes | Notes |
|---|---|---|---|
Stock / 0" Factory suspension | 31"-32" (~265mm-285mm) | P265/70R17 LT275/65R18 | No modifications needed. OEM fitment. |
1.5"-2" Leveling Front level kit | 33" (~285mm-295mm) | LT285/70R17 LT275/70R18 33x10.50R17 | Minor trimming may be needed. Popular daily driver mod. |
2.5"-3.5" Lift Suspension lift | 35" (~305mm-315mm) | LT315/70R17 LT305/70R18 35x12.50R17 | Fender trimming required. Re-gear recommended (4.56-4.88). |
4"-6" Lift Full suspension kit | 37" (~325mm-340mm) | 37x12.50R17 37x13.50R20 LT325/65R18 | Extensive mods required. Re-gear REQUIRED (4.88-5.13). |
6"+ Extreme Long-arm kit | 40"+ (~350mm+) | 40x15.50R24 42x14.50R20 Custom sizes | Show truck territory. Axle upgrades, steering mods essential. |
Recommended Sizes:
- • Minor fender liner trimming
- • Wheel spacers optional (1.5")
- • Re-gearing optional (helps)
- • -1 to -2 MPG fuel economy
(Tires: $1,200-1,600 + Lift: $800-1,500 + Install/Align: $500-900)
Recommended Sizes:
- • Fender trimming/flat fenders
- • Re-gear to 4.56 or 4.88 STRONGLY recommended
- • Wheel spacers or -12mm offset wheels
- • -2 to -3 MPG fuel economy
- • Possible CV axle upgrades
(Tires: $1,600-2,200 + Lift: $2,000-3,500 + Gears: $1,500-2,500 + Labor: $1,000+)
Recommended Sizes:
- • Flat/high-clearance fenders REQUIRED
- • Re-gear to 4.88 or 5.13 REQUIRED
- • Upgraded axles (Dana 44/60)
- • Steering modifications
- • Brake upgrades recommended
- • -3 to -5 MPG fuel economy
- • NOT recommended for daily driving
(Tires: $2,000-3,000 + Lift: $3,500-6,000 + Gears: $2,500-3,500 + Axles/Mods: $3,000-8,000)
Re-Gearing is Critical for 35"+
Larger tires = effectively taller gearing. Without re-gearing 35"+ tires:
- • Sluggish acceleration (feels like towing in overdrive)
- • Transmission hunting/shifting constantly
- • Overheating transmission on hills
- • Early transmission/engine failure
- • MPG still terrible despite "easier" cruising
• 33" tires: 3.73-4.10 (optional, helps)
• 35" tires: 4.56-4.88 (strongly recommended)
• 37" tires: 4.88-5.13 (absolutely required)
• 40" tires: 5.38+ (mandatory for V6/V8)
Common Lifted Truck Mistakes
- ✗Tires before lift: Don't buy tires first! Get lift installed, test fit, THEN buy tires.
- ✗Leveling kit only for 35": 35" tires need full suspension lift (2.5"+), not just leveling.
- ✗Ignoring wheel offset: Stock wheels won't clear 35"+ tires. Need -12mm to -44mm offset.
- ✗Skipping alignment: After ANY lift, get 4-wheel alignment. Prevents uneven tire wear ($1,600 loss).
- ✗Cheap lift kits: $400 eBay kits fail fast. Spend $1,500+ for quality (Rough Country, BDS, Fox).
Top Pickup Truck Tire Brands
BFGoodrich
Goodyear
Michelin
Nitto
Falken
OEM Tire Specifications
| Truck | Year | Front | Rear | Load Index | Pressure |
|---|---|---|---|---|---|
Ford F-150 XLT (2024) | 2024 | P265/70R17 | P265/70R17 | 113T (P-metric) | 35 PSI (front/rear) |
Chevrolet Silverado 1500 LT Trail Boss | 2024 | LT275/65R18 | LT275/65R18 | 123/120 R (Load Range E) | 60 PSI max (Load E) |
RAM 1500 Big Horn 4x4 | 2024 | LT275/65R18 | LT275/65R18 | 123/120 R (Load Range E) | 55 PSI recommended |
Ford F-250 Super Duty | 2024 | LT275/70R18 | LT275/70R18 | 125/122 R (Load Range E) | 60 PSI front / 80 PSI rear |
Toyota Tundra TRD Pro | 2024 | LT285/70R17 | LT285/70R17 | 121/118 S (Load Range E) | 35 PSI (empty) / 45 PSI (loaded) |
Frequently Asked Questions
What does LT mean in truck tire sizes?
What tire size is best for towing with my F-150?
What's the difference between Load Range C, D, and E?
Can I put 33 inch tires on my stock truck?
How much air pressure should I run in my LT tires?
Should I upgrade to LT tires if I have P-metric tires?
What are the best all-terrain tires for daily driving and off-road?
How long do pickup truck tires last?
What's the best tire for snow and winter driving?
Do larger tires affect my truck's performance and fuel economy?
Tire Size Comparison Tool
Compare two tire sizes to see the differences in dimensions and speedometer accuracy