Hi all,
I recently bought a narrowed 9" housing that was used in a drag car. Outside flange to flange measures 48-3/4". The stock 8" I removed measures approx 52" in the same locations.
Currently, the housing is set-up for 4-link with coil-overs. I will be changing this to a 4 bar bushed street set-up with coil-overs, so I can keep my rear seat.
The question I have is:
Do I need to narrow the rear frame at all?
I have to replace the wheel housings anyway, so I will mini-tub as required.
I know I can get wheels with different back-spacing. However, I'm just looking at what is the best option at this point.
FYI........Project status:
I have already replaced the entire front 'clip' including new frame rails, floor supports, floors, kick panels, rocker panels (inner and outer) lower cowl, and installed front torque boxes.

I am in the process of installing the rear torque box replacements. So, if I need to narrow the rear frame, now would be the time to do it.

Also, I just received my new front lower suspension parts..... I went with CPP mini-sub-frame and lower arms...NICE quality stuff!

Additionally, I am not concerned in the least of my car being original at all.
Thanks for reading my long-winded thread. Any help is appreciated.
Regards,
George