to be honest the ride quality between the IRS and the SRA are pretty similar at least to me. i don't notice much difference around the corners either.

 

I think the irs is noticeably smoother

 

Blown I agree with you.. I actually like the SRA over the IRS i had...

 

i think me car runs fine with the irs i had some wheel hopping when it was cold out though. Anyone that has 550 to 600+ should prolly have a 9" though lol...

 

so 550+? lol

 

lol you don't NEED a 9" with 550+... really it's a bit overkill for most anyone thats not going to be doing 5grand drop on some hoosiers and 700+rwhp...

but there are ways to beef up the IRS. just like there is with the SRA... and both can still break... I just really do prefer the SRA ride to the IRS..

 

IRS is far superior to what an SRA is capable of. You really just need to build it correctly. A fully built IRS will outperform a fully built SRA on any open track. If you get stiff enough springs with a built IRS, you'd be able to launch an IRS equipped mustang with no wheel hop issues.

I am not sure how you guys that claim there is no noticeable difference in feeling between a SRA and IRS. I went from a 8.8 to IRS, with new bushings and 525lb rear coilovers and the IRS floats over dips in the road where the 8.8 would feel like it gets demolished. Also the stock 4 link with the SRA setup is the most horrible performance setup.

I prefer the IRS over the SRA in every way, but that may be because it's my dd that see's a few soloII and a HPDE's, and I'm sure the fact that I've spent almost all my money on suspension and none on increasing hp/tq.

 

THERE are some halfshafts available from lethalperformance that are capable of handling over 900rwhp, Bustah.

 

DSS lvl 5's

 

Those are nice and they are even lighter than the stock HS's with the Chromoly CV's too bad they are 1400$.