Axle ratings are posted on the door label. These values represent the maximum capacity for the axle, based upon the lowest rating of the...

Most all systems include a pickup tube which pulls fuel from near the bottom of the tank, using a ½” to ¾” line connected through the top...

Ever dust an engine? Can you over change the element? When is the proper time to replace? Many maintenance facilities change air...

Trailer gap is measured from the nose of the trailer to the back panel of the sleeper. Sleeper extenders are not a consideration for the...

Most tractors today come equipped with an Automatic Traction Control (ATC) system and the functionality is optional on most all of...

The Federal Government has required most tractors to have an Antilock Brake System (ABS) since March of 1997. The legislation extended...

What is the purpose of a lubrication pump in a tandem drive axle set? There is a theory that this pump sends lube to the outer ends, this...

FMCSA 49 CFR § 393.67 - Liquid fuel tanks. Fuel tanks, 25 gallons or more, are required to meet FMCSS standards and indicate so on the...

These terms refer to the acceptable overload value of the steer, drive axles and respective suspensions temporarily encountered when lift...

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

Inverters convert 12V Direct Current (aka: battery power) into 120V Alternating Current (aka: 60HZ outlet power) for appliances such as TVs,

Vocational Information includes intended service, commodity, and body or trailer type. Why would the OE care, and what do they do with the i

A Air dryers are something we give little thought to until something goes wrong. Most of us understand that dryer sizing is related to...

Here is a topic of conversation. And when I say conversation, at times more like a heated debate. It could also be phrased as: Which axles d