Centramatic 300-318 Wheel Balancer Set (4) | 8-Lug 6.5" & 170mm | Ford Dodge GM

Centramatic Custom Wheel Balancers (Set of 4) – P/N 300-318

Fits: 16"–20" Wheels | 8-Hole Pattern | 6.5" & 170mm Bolt Circle

Eliminate the vibration, steering wheel shake, and "pounding" felt in your heavy-duty truck. The Centramatic 300-318 is designed for Single Rear Wheel (SRW) applications, balancing the entire wheel assembly—tire, wheel, hub, and rotor—automatically as you drive.

Technical Specifications

• Model #: 300-318

• Vehicle Type: 3/4 & 1-Ton Trucks (SRW), Bus/Motorhomes, Trailers/RVs

• Compatible Models:

  • Ford/Dodge: Most 8-lug SRW models

  • GM: 1995 and Older (8-lug)

• Wheel Size: Fits 16 in. to 20 in. Wheels

• Bolt Pattern: 8-Hole

• Bolt Circle: Dual Fitment — 6.5 in. & 170mm

• Quantity: Complete Set of 4 (Covers all wheels)

• ⚠️ Fitment Note: Due to variances between vehicle models, we may not be able to fit all applications. Please verify clearance before installation.

The "On-Board" Advantage

Centramatic's patented technology features a permanently sealed ring filled with hardened durametal alloy and proprietary synthetic fluid. As the wheel spins, centrifugal force automatically shifts this media to the exact opposite of heavy spots.

• Smoother Highway Ride: Virtually eliminates high-speed vibration and steering wheel "shimmy."

• Massive Tire Savings: Increases tire longevity by 25%–50% by preventing irregular wear and cupping.

• Lower Operating Temps: Reduces tire heat by 8%–10%, preserving the tire casing and improving safety.

• Maintenance-Free: No lead weights to lose and no beads to clog your valves. Just install and drive.

• Self-Adjusting: Automatically compensates for mud, snow, or rocks stuck in your tread in real-time.

Installation & Build Quality

• Easy Setup: No pre-balancing required at the tire shop. These mount directly behind the wheel on the hub using your existing lugs.

• Speed Activated: The balancing media shifts into the correct position at ~20–22 mph.

• Made in the USA: Built in Texas and backed by a 5-Year / Unlimited Mileage Warranty.