Opinions on T-56 swap/C4 IRS

[GM tech]

I have a T-56 from a 05 GTO I repaired at work.I was considering putting it in my Ty and removing the front axle,trans,transfer case and running 2WD for awhile.I was wondering what issues I might come across if I decided to try this,just kicking it around at this point.

I was also wondering if anyone ever tried installing C4 corvette IRS in a Ty?
My "friend" borrowed my vette recently and slid it into a curb with the top out and bent the frame.He was test driving it before he was supposted to buy it.Then he got it impounded when he left it on the side on the road,then he stopped calling me when I found out it was totalled.So,if I could use the rear suspension that would make me feel a little better about the loss.

 

[Norm]

Re: Opinions on T-56 swap/C4 IRS

I've seen vette rear ends in s-10/s-15's at car shows. Not sure how well they work. I think the spring rate might be out a bit because of the wiegt differences. What are you doing with the rest of the vette now?Guess you lost a friend also.

 

[JSM]

Re: Opinions on T-56 swap/C4 IRS

But he probably gained an enemy! Look on the bright side.

 

[Loeryder]

Re: Opinions on T-56 swap/C4 IRS

I have seen the C4 IRS swap into a blazer but never a SyTy.

Try searching some of the old Sport Truck magazines.
I know there was a guy that did it and they showed the whole buildup.
The track width was correct and he was 2wd so he didn't have to worry about matching gears.
Not sure what he did about the spring rates.

 

[alwayscode390]

Re: Opinions on T-56 swap/C4 IRS

The only problem you would have with a 6 speed and a 2wd Syclone is .... LACK OF TRACTION ---

 

[GM tech]

Re: Opinions on T-56 swap/C4 IRS

If I do attempt IRS,there are a couple other things I'd like to use if I can:FX3 and HD 13" brakes,I already have Baer rotors.At this point I am seriously considering the IRS,the 6spd takes the coolest things about my Ty away:AWD traction,AWD boost launches.

 

[dgoodhue]

Re: Opinions on T-56 swap/C4 IRS

There are 7 different spring rates for the C4 rear suspension. The Z51 in 1984 is the highest (540#) and was so harsh, it was never used again. I think the lowest is about 240#. I just recently saw a table of C4 spring useage, but couldn't find it just now. My Corvette microfische lists the 7 P/Ns, but not the rates. The lowest rate is used on 94-96 convertible with FX3 selective-ride suspension. They use 'soft' spring rates with FX3 to get a wider range of 'selectivity' from the shocks.

DaveP
(My other car-habit is C4s and NCRS)

C4 Suspension Chart

http://www.idavette.net/susp_chart.htm

I would honestly be concerned about the width of the suspesion. C4 Corvette are quite a bit wider than SyTy's. Changing the half shaft lengths is going to change the suspesnion geometry quite a bit.

 

[mattw]

Re: Opinions on T-56 swap/C4 IRS

I forget where I found these pics but I'm pretty sure this was done on an S10 frame..

http://mattw.dyndns.org/cgi-bin/pic.../pics/Clone_Project/suspension_drivetrain/IRS


-Matt