The 4 State Trucks Blog

Let’s do a quick breakdown of Mack trucks vs Peterbilt trucks. Key Takeaways Mack offers lower purchase costs and rugged vocational performance, while Peterbilt commands a premium for comfort, resale value, and customization. Peterbilt suits long-haul owner-operators seeking larger sleepers, lighter aluminum cabs, higher horsepower options, and extensive aftermarket support. Mack suits regional, vocational, and fleet work through strong low-end torque, durable steel cabs, stable suspensi …

Let’s break down how to maintain peak emissions performance and avoid excessive repairs on big truck exhausts. In this guide we’ll cover the various Diesel Exhaust Fluid (DEF) and Diesel Particulate Filter (DPF) products and their functions, from gaskets and clamps to slipcovers. DPF and DEF systems aren’t related in any way. But they’re both critical aftertreatment systems for toxic exhaust emissions on a big rig.  Key Takeaways DPFs trap soot, while DEF reduces h …

Every OTR truck driver needs reliable cooling for food and beverages on long haul drives. That's where semi truck refrigerators come in handy. When it comes to buying this must-have accessory, what's the best option to spend your money on?  Key Takeaways A 12V or 24V compressor refrigerator offers the best balance of cooling, efficiency, and battery protection for most sleeper trucks. Measure the cabinet opening, door clearance, ventilation path, and power connection before selecting a mo …

If you hang around truck shows long enough, you start hearing the same names over and over. Some are people. Some are companies. And a rare few are trucks. Ivy’s Poison is one of those trucks. This chopped, dropped, tribal-flamed 1986 Peterbilt 359 is the kind of ride that makes people stop mid-sentence and go, “Wait… what is THAT?” Built with serious love, serious parts, and a whole lot of attitude by Chrome Shop Mafia and the crew at 4 State Trucks, this rig is old-sch …

Key Takeaways on Semi Truck Upholstery Start with one high-impact area, such as the seats, headliner, door panels, sleeper walls, or flooring. Choose materials based on durability, comfort, cleaning needs, climate, and budget. Use model-specific upholstery kits for easier fitment and a cleaner installation. Hire a fabrication shop for complex stitching, molded panels, hidden storage, and full interior redesigns. Coordinate upholstery colors and stitching with the dashboard, flooring, chrome tr …