Building one of Factory Five Racing’s cars should be on the bucket list of every hardcore enthusiast out there. Depending on how a car is ordered from FFR, builders may have to source parts from junkyards or the aftermarket. One of the key pieces that is needed is a rear axle assembly. While we’re no stranger to hitting the local boneyard, or swap meet for key ingredients to our own projects, parts like the rear axle often make us cringe at the thought of buying one used, and that’s where Moser Engineering comes into the picture.

The housing are setup from Moser with FFR three-link mounts already in place.

It takes precision tools and a specific skill set to competently build and set up a rear axle housing properly. Backlash, and pinion depth, are just some of the areas where knowing what you’re doing is critical.

Housings from wrecked or junked cars can be damaged in a variety of ways, from a crash, rough usage, or even when a vehicle is being moved around (often by fork-lift) in the junk yard.

Moser Engineering is offering an alternative to used or junk yard rear axle assemblies for enthusiasts building a Factory Five Mk4 Roadster, Type 65 Coupe, or ’33 Hot Rod kit. That solution comes in the form an assembled, ready to go axle assembly, based around a new axle housing.

Moser offers two options for new rear ends, these aren’t junk yard rebuilds, they’re all new parts. The first is FFR88331-3. This rear end is an 8.8-inch, it comes in Fox-body Mustang width of 59.25 inches. It also features Moser 31-spline C-clip axles, 3.31 gears, and OEM style Trac-Lock differential. The housing already has the three-link style mounts for Factory Five chassis.

The second option is FFR500XXX-3. It features a Torque Sensing Helical Differential, and customers can choose from a variety of ring and pinion gear sets. The axles are also bolt-in style instead of C-clip style, making them legal for use in many racing sanctioning bodies.

If you’re investing tens of thousands of dollars in a build, then it makes sense to do it right. Moser is offering FFR enthusiasts one more way to get the job done right the first time, taking some of the headache out of the build process with a reliable new rear end assembly.