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Since we know that the Camaro will have IRS. What about aftermarket straigt axle?

3250 Views 23 Replies 10 Participants Last post by  brandonppr
For those wanting an aftermarket strait axle, do you think there will be one avalible? Is it posible with the new IRS to do a bolt in strait axle? Since it will be close to the G8 and Holden version I figured we could get an idea if it would work or not.
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I have no doubt some shop/company out there will offer a kit, just like the Cobra crowd was doing a couple years ago. Just don't expect GM to offer it.
How about Carbon Fiber Half shafts?

A straight axle should be EASY.
I'm personally looking forward to the IRS......
I'm looking forward to having the IRS too. :)

There's a rumor that GM Performance Parts may offer a live axle for the Zeta chassis.
But if not them, someone will do it I'm sure.
It will be only a matter of time before aftermarket guys will offer stronger shafts and possibly a straight axle kit.

I love the IRS in my GTO. I think unless you are pushing 600+ HP you may be able to live with IRS in the Camaro.
sorry guys im just a designer (and an australian).. you'll have to explain to me why anyone would want to replace an IRS with a live axle??
sorry guys im just a designer (and an australian).. you'll have to explain to me why anyone would want to replace an IRS with a live axle??
Well I was just curious to whether it was possible. I do not plan to go in this direction with the car anyway (thats what my current Camaro is for), but if I was setting this car up for drag racing I really wouldn't need much from a rear suspension other than to hold still, straight and together, an IRS's greater complexity will offer no real benefit and just a few more things to break and worry about. Also RWHP loss that you get with the IRS and doesn't that also equal less MPG? IMO for straitline racing the live axle > than IRS but for everything else its the opposite. I see wheel hop being an issue for IRS as well. Also when comparing cars I see there performance compared more in a strait line more than on a road course.

That being said. I think the IRS is going to do better than the live axle in the real world cars. I mean aren't they going to sell a ton more V6 Camaros than V8 Camaros. I am sure most all those V6 Camaros are not going to see much dragstrip duty and a lot more daily driving where it will be noticabley better. People will like the saftey of the IRS on the street. Not everyone cares about straitline performance anyway, if they did care that much about it I am sure that they would have sold way more Camaros than Mustangs in the past because the Camaro had the Mustang covered most the time in that department.

Like I said though I was just curious of how the suspension was set up. I was getting the impression that a live axle just couldn't work with the Zeta cars for some reason. My 5th gen will keep the IRS and If I were to have another prupose built drag car that was a 5th gen than it would be a tube chassis car anyway with a 4 link solid rear. After putting together the current drag car I have I have learned it is way cheaper and way better just to go with a tube chassis car from the start.
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Hopefully the Zeta IRS design will be better than that 1999 Mustang Cobra fiasco.
Did the Gto have IRS because if they did I really don't remember alot of wheel hop when watching them race.I'm definitely looking forward to an IRS in the maro. I'll probably only go to the track a couple times a year. I just hope it doesn't have a violent wheelhop.
Did the Gto have IRS because if they did I really don't remember alot of wheel hop when watching them race.I'm definitely looking forward to an IRS in the maro. I'll probably only go to the track a couple times a year. I just hope it doesn't have a violent wheelhop.

Yes, IRS on the GTO. There are companies that make HD shafts, cradles, 9" Ford differential IRS.

Drag bags help alot with wheel hop as well.
I remember the GTO getting a lot of wheel hop complaints. It may be a trade off though as usually a drag setup will eliminate wheel hop while decreasing handling in a live axle setup, I am not sure if that has the same effect in an IRS setup. I myself do have have way more experience with the 4th gen suspension than IRS.
03-04 cobras have been known to run in the hi 9's in the 1/4
with a beefed up irs, but of course switching to a gt 8.8 rear was the easy way out, im sure someone will offer a replacement, dont expect it to be cheep
the first few yrs.:eek:
Yes, IRS on the GTO. There are companies that make HD shafts, cradles, 9" Ford differential IRS.

Drag bags help alot with wheel hop as well.
hmm I didn't even know they had the 9" for it. So does all the 9" center interchange with a solid axle 9" center?
dont expect it to be cheep
the first few yrs.:eek:
Well, nothing in a bolt on applications is CHEAP, but with a torch, a TIG and some ingenuity, it could be EASY!:roxor:
AFAIK, there are no complaints about wheel-hop on the new VE cars from Holden thus far.
This is good news because that's the Zeta IRS. :)
Do you have an undercarriage pic of that VE?
hmm I didn't even know they had the 9" for it. So does all the 9" center interchange with a solid axle 9" center?

From What I understand. It's more or less a Ford 9" center that is IRS. Uses all the regular Ford parts in the center.
ahh thanks for the clarification!

now if you wanna know if a VE Holden gets wheelhop all you have to do is explain how to get wheelhop and i'll try it using the orange VE SS that's parked outside my house!!
Take some pics of the undercarriage around the IRS, so we can see how everything is attached and I can start buildng a straight axle.

Not for me, but for someone else! lol!
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