IRS into 54 oval.... Track width problems

[Plipton]

Hi All,

First post on here so hello to everyone

I am converting the rear of my oval to IRS but have found the rear wheels stick out too far so I need to narrow the trailing arms or buy some custom ones so that they tuck in under the arches.

So my questions for the forum....

• What is the width of a stock early swing axle rear end ? (I don't have the original gearbox or axles etc to measure).
  
• What is the width of a stock IRS rear?

Measurements (if possible) in mm and from drum to drum (wheel mounting face) please.

Nearest I have found on here is this post which gives me everything else I need to know.

Thanks
Plipton