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-   -   CSX4XXX IRS Answers needed! (http://www.clubcobra.com/forums/shelby-american-inc/116071-csx4xxx-irs-answers-needed.html)

Johnnyquest 06-18-2012 03:46 PM

CSX4XXX IRS Answers needed!
 
I acquired a CSX4000 series and checking out the car and took it out for a quick spin and under acceleration the rear wanders or darts around. I did a quick search and read some about bushings and what not.

Surely its the IRS out of whack, what should I look for. Under coasting it tracked fine.

Thanks, Randy

jhv48 06-18-2012 04:23 PM

If the car has Sumitomo tires. Get better tires!

mickmate 06-18-2012 04:40 PM

I would check 4 wheel alignment first. That includes a good wrench on the wheels especially forward and back to see if the alignment is changing.

Johnnyquest 06-18-2012 06:15 PM

How about some alignment specs I have seen two and they are different.

Thanks!

mickmate 06-18-2012 07:13 PM

The specs that work.
427 Chassis Alignment Specs
The place for 4000 info.
csxinfo.net - csxinfo Forum

Johnnyquest 06-18-2012 07:48 PM

Awesome, Thanks!

Randy

menace1 06-18-2012 09:26 PM

If it's that squirrly, better check the rear axle nuts. One or both sides may have come loose. These are usually torqued to 250-270 lbs.

Glenn

bret a ewing 06-19-2012 06:42 AM

Quote:

Originally Posted by menace1 (Post 1196381)
If it's that squirrly, better check the rear axle nuts. One or both sides may have come loose. These are usually torqued to 250-270 lbs.

Glenn

...............the Jesus nut.


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