Rear end width?

[TheJDMan]

Not trying to start an argument, but I have a hard time believing the 53" WMS dimension listed above is accurate. I suspect that is actually an axle housing flange width measurement. A lot of people confuse housing width with the Wheel Mount Surface. For example, I'm running 335s on 18x12 5.6" bs wheels and I am running a 57" WMS to WMS rear end width. I'm running a Moser 9" floater which has no housing flange and I ordered my rear end direct from Moser with the specified 57" WMS width. There are a lot of guys out there running 56" WMS rear ends which again makes me think the 53" is the axle housing flange width.

That said, don't trust anyone's measurements or dimensions because every car build is different. Buy your wheels/tires first then mock them up under the car. At that point it is a simple matter to measure the exact distance between the wheel mounting pads in order to determine the exact rear end width you need for your car.