Name: Cooper Discoverer Rugged Trek LT 35X12.50R20 125Q F (12 Ply)
Brand: Cooper
SKU: 90000036436
Price: 384.42 USD
Availability: InStock

Question 1

Will the 35X12.50R20 fit my stock truck without a lift?

Accepted Answer

In most cases, no. A 35-inch tire on a 20-inch rim is a large fitment — typically requiring a 2.5- to 4-inch lift depending on your make and model. Running this size on a stock suspension risks contact with the wheel well, fenders, or control arms at full lock. Common fitments include lifted Ford F-250, Ram 2500, GMC Sierra 2500HD, Chevy Silverado 2500HD, Toyota Tundra, and Jeep Gladiator. Always verify backspacing, wheel offset, and clearance before ordering, and confirm with a fitment specialist if your build is modified.

Question 2

Q2: What PSI should I run in the Cooper Discoverer Rugged Trek 35X12.50R20?

Accepted Answer

Most drivers run 60–75 PSI for daily street use. Maximum cold inflation is 95 PSI for Load Range F. Always follow your door jamb placard — not the sidewall maximum. Off-road, drop to 20–30 PSI for soft terrain, then re-inflate before hitting pavement.

Question 3

Q3: Does the Rugged Trek replace winter tires in snowy climates?

Accepted Answer

For mixed-climate use — packed snow, slush, occasional storms, yes. The 3PMS certification covers it. For severe alpine conditions with regular black ice or deep snow, a dedicated winter tire is still the safer choice.

Question 4

: How does the Rugged Trek handle deep mud?

Accepted Answer

Well for a rugged terrain tire — self-cleaning shoulder blocks eject packed material as the tire rotates. Strong for trail crossings and job sites. For sustained deep-mud or bog conditions, a dedicated mud-terrain tire will outperform it.

Question 5

Q7: Can I tow with the Rugged Trek 35X12.50R20 on a 3/4-ton truck?

Accepted Answer

Yes. Load Range F supports 3,638 lbs per tire at 95 PSI, 14,552 lbs across four tires. Confirm it aligns with your vehicle's GVWR. For 1-ton DRW trucks at max payload, check your door jamb placard for load index requirements.

Cooper Discoverer Rugged Trek LT 35X12.50R20 125Q F (12 Ply)

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