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USA Standard Gear Articles and Blog

Common Carrier Breaks

Common Carrier Breaks

Posted by :  Evan | Posted on :  05-24-2021

As discussed in detail last month, there are many situations where a different height carrier case is needed when making a gear ratio change. Included here is a list of carrier breaks for most popular rearends. Many of these have thick or thin ring & pinion sets available to eliminate the need for changing carriers. Rearends with those options available for some ratios are indicated in the...

Types of Differential Traction

Types of Differential Traction

Posted by :  Evan | Posted on :  05-24-2021

Standard Carriers, Positraction & Limited Slips, Locking Differentials, Spools and Mini-Spools As an opening note, for all situations except factory OEM electric lockers, a standard open carrier can be replaced with a limited slip or locker. Likewise, a locker or limited slip can be replaced with a standard open carrier. Limited slips and lockers can be interchanged. And of course, a...

Myths Regarding Differentials

Myths Regarding Differentials

Posted by :  Evan | Posted on :  03-22-2020

Over the years I have heard a lot of myths regarding the setup and design of differentials. Anyone with a little experience can fix a diff. I have heard time and time again that the following situations make a person a qualified differential expert: 1. They are an old-timer, a grizzled guy with stained overalls. 2. They are a machinist. 3. They are in a four-wheel drive club. 4....

Before You Call For Rearend Parts

Before You Call For Rearend Parts

Posted by :  Evan | Posted on :  03-22-2020

It may sound silly, but there are many things to consider and lots of data to collect prior to picking up the phone to find rearend parts. Unlike engine or suspension parts, rearend parts are not easy to look up, and can vary greatly on any vehicle make/model. Just because it has a specific engine size or transmission type does not mean that the vehicle uses one specific gear ratio. Vehicle...