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...

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

Fasteners come in all styles. When you are talking about frame mounted components on trucks it is narrowed down to two styles, huck bolts...

If the objective is merely a haul a few pounds more on each load, then the ROI may not be present.

Did you ever think that there is more to clear than just the trailer to cab or sleeper?

Wheelbase… as you read this you re probably thinking: ELEMENTARY, right? Well more than one salesperson has gotten into trouble over this te

All of the transmissions can be shifted like the 10-speed, it’s the splitter that adds the extra levels of gearing. And using that spilt is

A 2-speed rear axle can eliminate the need for an auxiliary transmission in some applications. These axles contain gearing for two ranges.

As the fifth wheel moves weight is transferred between the axles on the power unit, or chassis. Many people do not fully understand this, an

Split-shaft PTOs and Transfer Cases both use driveline power to run another piece of equipment. Aside from being located in the drivetrain,

HAULMAAX was the evolution of HN that brought lower costs and lighter weight. It also brought the “virtual center point” down.

Have you ever seen a torque curve? They are fascinating (OK, well maybe not to everyone). But it is pretty powerful to be able to see how...

Front spring pins are available in two styles

If your customer is truly grossing 140,000, without a pusher, ask if they would accept rear axles rated at 40,000 lbs. This may sound counte