ESC/ESP (Electronic Stability Control/Electronic Stability Program) are essentially the same product, the particular name depends on the...

The SAE J560 (black or green) plug has been used since 1951 to power the trailer functions: Ground, Side Marker Lights, Left Turn, Brake,...

Winter fronts can increase the aerodynamic characteristics by directing ram air around the hood. Additionally, some of them look great,...

Most OE’s offer auto reset mechanical circuit breakers as an option to fuses in the power distribution box. For a few more dollars, the...

Fuel filter maintenance is more important today, than any time in the past given the common rail design and tight tolerances. See below...

In cold weather, there are a number of methods to warm the fuel to help eliminate clouding/gelling. Cloud point refers to the tendency...

Trailer gap was never even a consideration back in the 90’s. As a matter of fact, it was another 10 years beyond that decade when things...

Red and Blue airlines connect the tractor air brake system to the trailer. Red is emergency brakes and applies system air pressure to the...

Republished due to content error - rail treatments are applied AFTER the holes are punched or drilled to ensure protection inside the...

Today’s engines are designed to deliver maximum torque at low RPM. This provides for good fuel economy with proper gearing Torque curves...

When it comes to rear discharge mixer trucks, they are basically two classifications. Bridge formula and Standard. Each has a unique...

Power Take-Off units, or PTOs, are used to deliver power to auxiliary equipment. Most vocational trucks will utilize one or more of these un

A SCAAN is a full analysis of the projected vehicle operation. It is needed to verify that the correct torque converter is selected, and tha

Typically, a 9ALL transmission is used for pouring curbs, a mixer application. It is the only transmission that is geared low enough to cree

Fixed pins are tied in o the front frame structure, and are singular, centered in the bumper. They are typically capable to 80,000 lbs. of

Minimum lift axle spacing can be tricky. Suppliers have become really good at packaging their products so more axles can go under a...

Reduced Stopping Distance was implemented in phases, generally known as RSD1 and RSD2. The Federal Mandate was aimed at making roads...

Wheel slip occurs when power is routed to any one outer end of drive axles due to an extreme low coefficient of rolling resistance within...

Stinger-steered log trailers consist of a tractor with a log bunk mounted over the fifth wheel. This log bunk is capable of rotating on...

The grade to slope numbers have been translated for your use below, since they represent such a small area of the ‘protractor’ image. Just b