The 4 State Trucks Blog

To identify the right Freightliner FL70 parts, you must use your 17-digit VIN and the factory spec decal inside your cab, rather than relying on the exterior model badge. Because FL70 and FL80 Business Class trucks were custom configured for vastly different jobs, using your VIN to look up the original bill of materials is the only way to avoid ordering incorrect parts.  Use the Badge & the VIN for Accurate FL70 Replacement Part Fitments Use the vehicle specification decal located insid …

With so many heavy-hitter brands in competing for driver loyalty, one relatively newer parts manufacturer (since 2016) has captured driver loyalty through transparent pricing, system-level upgrades around lighting and modular truck customization.  Here's a deep dive on Iowa Custom Truck Parts.  Iowa Customs: The Story Behind the Brand Iowa Customs has lived up to their slogan – Driven to be Bold— by pushing the limits of truck customization with high-quality accessories bu …

Here are some of the most common steering problems found on older Peterbilt 379 models, how to diagnose those issues, and how to prevent them. Related Posts:  How to Replace a Peterbilt Steering Shaft Signs of a Bad Peterbilt 379 Steering Shaft Diesel Shop Diagnosis of Steering Issues Loose steering on a Peterbilt 379 is rarely a single failing part; it is a symptom of cumulative wear across the linkage, gear box, and steering shaft. Driver Pre-Insepction for DOT Compliance According to D …

If you are undergoing a Peterbilt 379 steering shaft installation, this brief guide covers everything you need to know: component anatomy, part fitment, step-by-step installation, safety checks, and bad steering shaft symptoms on a Peterbilt 379. Why Replacing the Peterbilt 379 Steering Shaft Matters PURPOSE: It connects the cab-mounted steering column to the frame-mounted steering gear. It transfers steering input, handles torque, and absorbs vibration. Ignoring a failing steering shaft can le …

Steering issues on a Class 8 heavy-duty truck are a critical safety concern, and recognizing the bad steering shaft symptoms Peterbilt 379 trucks exhibit is vital for every owner-operator. If you notice an unusual amount of steering play Peterbilt 379 rigs can develop over hundreds of thousands of miles, ignoring it can severely compromise vehicle control, tire life, and overall safety on the road. This guide breaks down how to spot a steering shaft failure early on. Common Signs of Steering Sha …