Custom rear axles are not something that you want to have to buy twice. Luckily, Moser Engineering has made it easy with a step-by-step video on how to use their custom spec sheet and make sure you get the tire-turners you need.

If you’re starting from scratch, required tools include a tape measure, two straight edges, a marker, and dial calipers. To place an order, minimum required information includes axle length, hub pilot diameter, type of housing, spline count, type of brakes, and bolt pattern. Just like anything else, the more information you can provide, the happier you’ll be with the finished product.

The process starts with their comprehensive order form and an idea of what kind of axle housing you have. For Mopar applications, that’ll most often be the 8.25”, 8.75”, 9.25”, or Dana 60. If you aren’t sure, Moser can handle any questions based on bolt pattern, housing shape, or a few other identifying factors.

Housing ends are just as important. Vintage Chrysler cars generally only have two variations, but it’s important to check the measurements on their order form just to verify. Shaft length comes next and both sides need to be measured since some applications have different lengths between the two.

After that, just follow along with the alphabetized check sheet and fill in the details. As always, Moser aims to ship all axles within two business days, an unmatched turnaround time to help ax your axle woes.