BAJA 15x8 5x139.70 Polished Wheel

The BAJA 15x8 5x139.70 Polished Wheel from American Racing Wheels is a single-piece aluminum casting engineered for off-road and light-duty truck applications. With a 5x139.70mm (5x5.50-inch) bolt pattern, 3.750-inch backspace, and 15-inch diameter, this wheel delivers proven fitment across a wide range of full-size and mid-size trucks requiring aftermarket rolling stock. The polished finish resists corrosion better than standard painted or bare aluminum, making it suitable for operators working in variable field conditions.

The 8-inch width and 3.750-inch backspace specification control load distribution and suspension geometry for stable handling during both highway transit and rough terrain operations. At 23.43 lbs per wheel, the American Racing BAJA maintains a light rotational mass relative to competitive alternatives, reducing unsprung weight and preserving fuel economy on extended patrols or supply runs. The polished aluminum construction resists oxidation in salt-air environments and high-moisture conditions common to coastal or tropical deployments.

This wheel suits owners of 1970s–1990s Chevrolet and GMC trucks, Dodge pickups, and comparable vehicles with the 5x139.70mm bolt circle. The BAJA platform is also found on Jeep and Ford applications within that era. Vehicle-specific fitment validation—including offset, clearance, and load rating confirmation—is the buyer's responsibility before purchase. American Racing Wheels maintains a solid reputation in the vintage and classic truck market for cast durability and corrosion resistance.