irs

  1. S

    Has anyone used KW coilers for drag racing? Can vikings be used for back roads?

    So I am dead set on keeping my IRS, and I am planning on installing FTBR bushings soon, but I am trying to figure out the rest of the suspension. My car will be a street/strip car that handles better than stock on the twisty back roads, the drag strip and the occasional track visit. Has anyone...
  2. Slowings

    Looking for an Axle swap SLA for IRS

    Hoping I'd have some luck for a straight trade, previous owner got rid of basically everything that made my 01 cobra, a cobra, including the IRS. Looking for anyone who would like to swap their IRS for my SLA out of a low mileage 03 GT, with 4.10s, new LCAs and stiffer rear springs. I believe...
  3. M

    New member, old visitor

    What's up everyone. I've been on SVTP quite a few times but never made an account until now. I started out with a 1998 Laser Red/pink(ugh) GT and later moved up to a 2007 GT (don't hate me), and have since moved on up to my 2001 Mineral Grey Cobra. I can say without a doubt that the cobra is...
  4. ModularMadman

    Billetflow IRS brace - $75

    I've been meaning to sell this. It is Redfire red, but the color isn't all that great after being attached to the diff for a few thousand miles. I got a new set of hardware from Billetflow to sell with it. The diff cover bolts are longer than the stock cover bolts so you need these to install it.
  5. Canman2531

    3 quick FTBR IRS Bushing Kit Questions

    I’ve been reading the forums for all I can about the FTBR IRS kit, watching vids, etc., and I finally pulled the trigger. I ordered the FTBR IRS 5001 kit (kit + Delrin Rear differential lowering mount) along with the Ford Racing Reinforced IRS Rear Diff Cover milled for clearance. Before I...
  6. electricgreendrock

    In need of rear diff housing!!

    So I had my pinion seal replaced shortly after buying my car and I guess they didn't torque the nut correctly during re install and my pinion bearing let go which let the pinion gear eat the inside of the housing so I'm hoping some one near ga has a pumpkin that I can buy with out having to buy...
  7. Justinfiore

    WTB Manual swap, IRS and exhaust

    Looking for T56, computer, and IRS out of a cobra. Also selling all my Mach 1 auto goodies, my transmission was freshly rebuilt this week and cleaned up, never installed. The T56 could just be a shell, Im sending it out to RPM transmissions to have it built up. Also looking for a Cobra IRS, one...
  8. T

    2001 Cobra IRS Toe Link

    Does anyone have a source for a new IRS toe link. I can't find a listing at any of the jobbers and Ford has discontinued the part. I need the drivers side and will purchase 2 if the right and left are the same. Thanks, Tom
  9. F

    Hey you cobra guys...

    Want a more solid rear end? Just finished my design and first batch of 99-04 IRS Aluminum subframe bushings. Pretty tight fit, have to freeze them before they will slide into the IRS cradle which is exactly what I wanted. Turned out pretty sweet. Next step is to get them anodized and slap a...
  10. J

    Parting out IRS!! looking for built SRA

    Parting out my Independent Rear Suspension out of my 03 whipple cobra Latest rebuild on it was February 2014. Ring Gear and Pinon broke some teeth off, so def needs a rebuild car has ford racing 3.73 gears, rebuilt stock differential, all new bearings during rebuild. Billetflow IRS Brace in...
  11. I

    2001 SVT Cobra IRS Swap....

    The IRS to my 2001 SVT Cobra is going out. I just ordered a 03/04 IRS from ebay for $1,500 + shipping($300) = $1,800. I also ordered new sway bar end links, sway bar bushings, and a Ford racing irs differential cover. Mine as well get those replaced before installing the IRS. Now once I make all...
  12. drohan8592

    Complete 04 Cobra IRS. Low miles DSS Level 5 axles and more

    I have a complete IRS assembly out of an 04 cobra with 17K miles on it. Includes rear brakes with newer hawk pads. It has DSS Level 5 axles with about 2,000 miles on them and poly Steeda Differential Bushings with a Billetflow IRS brace. I also have a set of IRS specific Eibach pro kit springs...
  13. 0

    Rebuilding Diff - average mechanical skills

    Due to "clunk" in in the diff, I took it out and opened it up to measure the backlash. Result: 0,016 to 0,018 - too much (Ford recommends 0,008 to 0,012). I'm not quite sure what to do now: 1. Shim the crown so the backlash will be whithin spec. Leave the pinion alone. -or- 2. Take out the...
  14. 6

    Cobra 8.8 IRS Girdle & Bushings

    Motoblue billet aluminum IRS girdle, with blasted/repainted 12 point hardware, used. This is track tested and will keep your stock irs rear diff cover from breaking. It’s a nice piece, and all one piece of billet. This can be installed without removing the diff from the car. $125 shipped...
  15. A

    03 Cobra IRS for sale

    Came out of a wrecked cobra 65k miles 1200 OBO located in southeast MI text Eddie for pics at (313) 350-3572 thanks. Also, if someone could tell me how to upload pics to these threads that would be awesome
  16. 2

    2003 cobra IRS for Sale

    Please remove ad Parts are no longer for sale. Might repost later if I decide to sell them. Please remove ad.
  17. J

    F/S Fully built IRS with Borla cat back exhaust

    Fully built IRS out of an 03 Cobra with COMPLETE Full Tilt Boogie Racing kit - Delran bushing kit, bump steer rods. Ford racing differential cover and brace, Qa1 shocks, springs, CAT back Borla Stinger exhaust. Half shafts are stock but just as strong as most aftermarket. 3.73 gears. Does...
  18. J

    F/S Cobra IRS and CAT back Borla exhaust

    Fully built IRS out of an 03 Cobra with COMPLETE Full Tilt Boogie Racing kit - Delran bushing kit, bump steer rods. Ford racing differential cover and brace, Qa1 shocks, springs, CAT back Borla Stinger exhaust. Half shafts are stock but just as strong as most aftermarket. 3.73 gears. Does...
  19. KLLR SNK

    UCA/LCA Delrin Bushings

    Drop Engineering IRS UCA & LCA Delrin bushings BNIBag.
  20. Phil04Cobra

    Will a 15" weld rts work with ftbr toe links

    Hey guys I looked around and couldn't find any info on this. I know I will have to grind the knuckle down to run a 15" but will it clear with the bigger toe links ? Has anyone run a 15" with the upgraded deluxe toe links from FTBR ? If so are there any additional mods to make them work? I...
  21. FMD

    My Experience with Full Tilt Boogie Racing

    Hey guys, Just wanted to give a semi-brief shoutout to Bruce at FTBR (ac427cobra), even though im sure hes gotten this praise thousands of times already haha. So my first impression was reading the complete guide on how to make the IRS in the cobras work for us rather than against us, it was...
  22. 99p1scGT

    ISO: 3" Bassani IRS Catback

    Looking for a 3" Bassani Catback for 03-04 cobras with IRS. Needs to be in good condition and i would prefer polished piping. Let me know what you've got! Best way to contact me - (703) 474-1078
  23. 99p1scGT

    WTT: Perfect condition 99/01 Amber Tailights for Borla Stinger IRS Catback

    I am testing the waters to see if there is any interest in a trade for my 99/01 amber tail lights for good condition Borla Stinger IRS catback (preferably polished). Tail lights are flawless and have recently been wetsanded and buffed, so the catbakc would have to be in similar condition. I...
  24. 99p1scGT

    WTT: Steeda IRS Catback for Borla Stingers IRS catback

    I have for trade my Steeda catback for IRS mustangs. In great condition with a slight polish. This is what some call the Borla "quiet" catback. Looking to trade for Borla Stingers in similar condition. Prefer a local trade close to Loudoun County in Northern VA. will add cash for polished finish...
  25. S

    FS: Maximum Motorsports IRS Upgrades

    For Sale: Maximum Motorsports IRS upgrades. All pieces are brand new and have never been used. Some boxes are opened but most are still sealed. I swapped out the IRS before I had a chance to install these. Lower Control Arm Delrin Bushing Kit (MMIRSB-1) $300 Upper Control Arm Delrin...

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