C4 corvette irs installation.

[Supercharged111]

Not all IRS is created equal. I'm not too familiar with how good or bad the C4 was, I do know they're easier to retrofit because the axles are effectively the upper control arms, but all IRS has quirks somewhere due to packaging constraints.

 

[Erik the Awful]

Using the axles as upper control arms is a compromise. Same problem with Jag diffs. Mr. Adams' assertion is that such a design has camber control issues. My Jag is such a pile that the few times we got it up to speed on track we were more worried about keeping the rust holding together and the temperature below nuclear than we were about camber. It felt sketchy as hell at any speed.

I'd say make sure the bushings are good, the diff gears and axles are tight, and roll it.

 

[bocajoe]

Find yourself a 4X4 frame-The front suspension will almost bolt up.

Sorry to bump this old thread but...

ccreddell Can you elaborate on using a 4x4 frame for the Corvette IFS and it almost bolting in?

You mentioned you've done the measuring, and a 4x frame would work better/easier based off this truck.

http://www.trucktrend.com/cool-trucks/1992-chevrolet-c1500-sport-truck/

 

[ccreddell]

It would still take a bit of fabricating, it’s just that the 2wd frame would require massive amounts of cutting to get rid of the spring pockets and to build up again to accept the C5 cradle. I’ve decided (if I ever get the coin and the time-at the same time) to use a 2wd frame and chop it of somewhere around the firewall and just build a stub frame out of 2x3 or some such.

 

[bocajoe]

It would still take a bit of fabricating, it’s just that the 2wd frame would require massive amounts of cutting to get rid of the spring pockets and to build up again to accept the C5 cradle. I’ve decided (if I ever get the coin and the time-at the same time) to use a 2wd frame and chop it of somewhere around the firewall and just build a stub frame out of 2x3 or some such.

OK cool, thanks for the info and getting back to me on this. Dang it, now the wheels in my head are turning. Not sure if that's a good or bad thing LOL

 

[Supercharged111]

I went back to the first page and didn't reread the whole thread, it looks like we're talking about the back and not the front here?

 

[bocajoe]

I went back to the first page and didn't reread the whole thread, it looks like we're talking about the back and not the front here?

Good point. I was actually referring to the front IFS. In the thread the IFS got brought up.

 

[ccreddell]

It was both.

 

[ccreddell]

Something else I just found-and now my wheels are turning! Kept me up late a couple nights now...

C5 and C6 Corvette Suspensions Interface Adapters

We offer a bolt in C5 and C6 Corvette Suspensions Adapter Kits for the Do-It-Yourself builder that includes all of the mounting points and brackets

rick486.wixsite.com

 

[Ole Ruby]

Pinion set at 0 degrees. There's a little room for the driveshaft.

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did you use the stock drive shaft