Quote:
Originally Posted by Crowley
I believe you are correct. The 03/04 cobra chasis was built for a Solid Axel. The IRS was adapted to those cars. My 04 was putting down 509rwhp / 520rwtq and the IRS was holding up find. Some had 600rwhp and it was holding up fine.
I for one think we will be fine .. however, it will get interesting with some very sticky tires to see how the halfshafts hold up. Anothing item that I bought for my 04 cobra was what they called an IRS Brace, it would re-inforce the pumpkin as they were known to get nasty cracks  .. Hopefully the GM IRS doesn't have this problem.
Crowley
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I see; cool. Look at how many early GTOs and CTS-Vs were munching rears because of wheelhop and such. I know that GTOs benefited greatly from the bushing kits from the likes of BMR and such. I think the staggerred shafts are going to help with the hop too, so I think we're going to be alright. I do recall 'Vettes getting those braces too and think they couldn't hurt us either