IRS independent reas suspension? any one done it - Chevy Impala SS Forum
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post #1 of 18 (permalink) Old 09-18-2003, 04:41 PM
Crispix396
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ony one fully swapped the rear suspension to an IRS. Like the vets or many of the newer luxury cars. I know its work, but was wondering how feaseable it is, and how/if it helped.
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post #2 of 18 (permalink) Old 09-18-2003, 06:11 PM
AutocroSSer
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I know of a few people (including myself) that have looked into it. There is no "bolt in" (or weld in) kit available, and as far as I know no-one has actually done this swap.

I do think there would be some notable handling benefits (assuming it is set up properly) to do this. I do NOT think the swap would be remotely cheap though....I'm figuring at least $3K and losing the ABS to get it done.
post #3 of 18 (permalink) Old 09-18-2003, 06:43 PM
tbsimmons
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Well from the past, unless things have changed.
There are only 2 reasonable options, the vette or Jag rearend.
A buddy of mine found a Jag reaerend in a junk yard and had it shortened to fit in an S-10.
The whole frame on the truck was custom, so that was easy to the point of building the frame around the rearend.
Either one you choose, unless they have changed in the last 4 years, the rear ends get mounted to the cars at the center. This means that you would have to build the rear section of the frame. This would be a lot harder in a car than it was on a truck with no bed on it, espcially since you can raise the bed floor easier than the floor pan of a car.
 
post #4 of 18 (permalink) Old 09-19-2003, 12:11 AM
Crispix396
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yes, the rear end is gonna be mostly custom anyways...

So it is possible, but not cheap. DAMN, what are the horsepower ratings on a IRS. If one was to swap out a vett rear, what year range would someone be looking at... like c5 or a c5 body?

This is not an immediate mod, but i would not complain with that smoother ride or the better suspension handling...
post #5 of 18 (permalink) Old 09-19-2003, 10:18 PM
tbsimmons
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Anything is possible with a torch and a mig.
I think either rearend would handle the power fine.
post #6 of 18 (permalink) Old 09-20-2003, 08:26 AM
96capriceMGR
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I think you would be much better off starting with a Jag rear because a Jag would be much closer in weight to a b-body than a Vette is.
post #7 of 18 (permalink) Old 09-20-2003, 10:27 AM
BAD ROD
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This would be a fun modification. The traditional hot rodders use kits like this .

Just plug and play!

Mike
post #8 of 18 (permalink) Old 09-24-2003, 11:43 AM
mexSSican
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Quote:
Originally posted by BAD ROD:
This would be a fun modification. The traditional hot rodders use kits like this .

Just plug and play!

Mike
What sort of axles do they use? Heres another COMPANY that does IRS conversions. They use Corvette rear ends (Dana 36/44). Wish I had the $$$.

EDIT: Which one of those 2 companies would be a better setup?
post #9 of 18 (permalink) Old 09-24-2003, 11:50 AM
Crispix396
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3 grand or 4 grand... thats the dif.. the 4 grand comes with willwood disk breaks. yeah, i wish i had the money...
post #10 of 18 (permalink) Old 09-24-2003, 02:43 PM
threeimpalas
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Kugel has IRS setups that use 9" Ford centers for your hi-output situations.

I'd take one with a quickchange center for the cool factor, however. That'd be handy for your highway, drag strip, or road race gearset changes.
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