A Closer Look at Crankshafts
With the great power of the engine comes the great responsibility of the crankshaft.

Ball Joints: How Much Play Is Too Much?
There’s a common misconception that any play in a ball joint means it’s
wearing out.

The Evolution of Transmissions
It’s interesting to see how the planets have aligned over the years.

What’s New With Spark Plugs?
While today’s plugs might look like those from 50 years ago, they’ve remained in constant evolution.

Wheel Bearings and Geometry
The pre-load determines the exact location at which the roller balls will contact the inner and outer races.

Brake Rotors: Resurface Or Replace?
With any rotor problems, unless it makes economic sense to resurface, just replace them.

Loaded Struts: What’s In A Name?
Loaded strut assemblies are known by many monikers, but they all offer a common advantage: ease of installation.

Diagnosing Engine Misfires
Contrary to popular belief, the ignition system isn’t always the cause of an engine misfire.

Selling Parts For Light-Diesel Engines
From fuel additives to performance upgrades, there are plenty of sales opportunities.

Serpentine Belts
This is a story with some teeth.

Constant-Velocity Joints: Smooth Operators
Today’s CV joints are a radical departure from anything resembling a U-joint.

Selling Oil Filters: The Unfiltered Truth
They might look the same on the outside, but there’s a clear difference between good, better and best.
