RyansQuick6

This tech article was provided by JUSTA6, thank you for the contribution Tim.

Cobra IRS conversion.
Before we start I want to say keep all your nuts and bolts organized this makes the job much easier when you are putting the rear in the car
You will need to reuse some of the bolts that you removed when taking the SRA out
1. Remove wheels
2. Remove brake calipers and rotors
3. remove o2 sensors and mid pipe
4. remove the drive shaft
5. remove the back seat so you can get to the ABS wires and plugs (if equipped)
6.unplug the ABS wires and pull then through the floor and through the torque boxes (if equipped)
7. remove the parking brake cables from the control arms
8. support front of car and rear if on a lift


9. unbolt the ucas and lcas( for the ucas you will need a 18mm swivel a 6’’ extention and a wrench)
10.remove the brake lines from calipers ( you will not be re using the sra calipers)
11.lower axle to remove the springs
12.remove rear axle


13. remove the exhaust
14. remove the trunk trim to get the the upper shock mounts


25.remove the shocks
Now that the rear is out if your like me you probably have tools everywhere no now is the time to clean up


Installation of the irs
If you are **** like me you will probably will want to paint the rear so it looks decent for show season


1. Remove fuel tank
2. Tap the holes for the irs brackets so when installing the bolts you don’t fugg up the threads



3.install the right and left irs mount brackets
(use grade 8 bolts)



4.Reinstall the fuel tank
(install new fuel filter, its PITA to do with the rear in the car )
(replace filler neck seal while the tank is out or you might crack the seal and end up with a leak when the tank is full like I have )
5. Position the IRS assembly under the car



6. Use a porta power to open up the front irs mounts so the rear slides into position easier
(your gonna fight getting it in if you don’t spread the mounts the mount is the same as the lca mount )
7. Install the rear in the car with out the springs
(I found its easier the install the springs once you rear mounts are bolter in )



8.remove the front irs bolts and lower the front of the rear down to install the springs
9. install the springs and jack the front of the crossmember back into place and reinstall front irs mounting bolts. The front irs mounting bolts are the 14mm bolts you took out of the lcas

10. install shocks
11.reinstall the driveshaft mine rear came with a universal yoke on it but some come with a cobra only yoke flange you will need to swap the flange if the bolt holes don’t line up

12. reinstall brakes and rotors and install you brake lines. Brake lines need to be tweeked a little bit to fit don’t bend them too much or you will kink the aluminum and break the line I would suggest buying new cobra brake lines as well
13. reinstall the e brake cables I suggest using cobra cables since the sra cables are shorter make sure if you do use sra cables tie them no the control arms so they don’t rub on the tires
14. bleed the brakes
15. reinstall your mid pipe and exhaust. My exhaust showed up a week later so I had to run straight pips and dumps



Now that your new irs is installed put the wheels on and TORQUE THEM to 100ft lbs
Don’t get too excited and not torque them like I did I almost had a wheel come off……
enjoy the finished product


And when the exhaust shows up install that so you don’t get a ticket like I did for no exhaust system


Well that’s the entirety of the irs swap its pretty straight forward .



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