Solid axle vs. IRS

[calforniacuda]

Used C5 spindle, control arms, hubs, are pretty cheap. If you can live with stock track width the aluminum cradle for lower control arm mountings can be used. Suspension analyser program has free sample with location of control arm mounting points.

Not necessary to use C5 rear diff, 8.8 ford can be used or there are other good choices. Modified half shafts are needed. I'll try and post some pictures of my project

The cobra irs has some issues that can be easily fixed. The assembly is contained in a frame assembly that space permitting can be installed easier than most.

My limited experience has shown that a live axle is much easier to load and tune for drag strip, high traction situations. Irs would typically be used, not for straight line, but for road racing applications.

My 2 cents