Sierra 2500HD/3500HD 2020-2026 GMC 4WD (w/ 5"-6.5" Lift) - 37x12.50r20 Avix TrailTek RT / 20x9 Fuel Contra Gloss Black Milled / Tire & Wheel Package (set of 4)

The Fuel Contra 20x9 8x180 +1 wheel and AVX TrailTek R/T 37x12.50R20 tire package part number ful_d61520901850avx_avx-201800 is engineered specifically for GMC Sierra 2500/3500 HD trucks running 5"-6" suspension lifts. This 8-lug setup delivers the aggressive stance lifted HD trucks demand while maintaining proper clearance and drivability. Each package is professionally mounted and balanced for true bolt-on installation.

This package was assembled using our extensive fitment knowledge along with manufacturer specifications to ensure proper offset, backspacing, and heavy-duty load support. The 20x9 Fuel Contra features an 8x180 bolt pattern, +1mm offset, and 5.04" backspacing to position the wheel correctly under lifted Sierra 2500/3500 HD applications without excessive poke or clearance issues.

Paired with the AVX TrailTek R/T in 37x12.50R20, this hybrid rugged-terrain tire offers strong off-road traction while remaining quieter and more stable on the highway than a full mud-terrain tire. With a 3,750 lb load rating at 65 PSI and Load Range E construction, this tire is built to support diesel-powered 25002500 HD trucks used for towing, hauling, and trail use.

Package Features & Benefits

• Complete 20x9 8x180 wheel and 37x12.50R20 tire package mounted and balanced.
• Designed specifically for GMC Sierra 2500/3500 HD trucks with 5"-6" lifts.
• +1mm offset and 5.04" backspacing optimized for lifted 8-lug applications.
• 3,700 lb-rated wheel paired with a Load Range E 10-ply tire.
• Hybrid rugged-terrain tread balances off-road grip with improved highway comfort.
• 8-lug configuration built for heavy-duty diesel truck applications.
• Optional TPMS sensors installed and programmed if selected.
• Optional 8-lug lug nuts, matched to the wheel finish, if selected.

Wheel Features & Specs

• Model: Fuel Contra (D615)
• Size: 20x9
• Bolt Pattern: 8x180
• Offset: +1mm
• Backspacing: 5.04"
• Load Rating: 3,700 lbs per wheel
• Construction: One-piece aluminum
• Designed for heavy-duty Sierra 2500/3500 HD fitment

Tire Features & Specs

• Model: AVX TrailTek R/T
• Size: 37x12.50R20
• Overall Diameter: 36.76"
• Section Width: 12.5"
• Tread Depth: 18.9
• Load Rating: 3,750 lbs @ 65 PSI
• Load Range: E (10-ply rated)
• Speed Rating: Q
• Load Index: 126
• Approved Rim Width: 8.5-11.0"