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03-15-2008, 10:44 PM #1
Has anyone done an IRS rear end swap in their Fox Body or 93 Cobra on here?
I am about to install a IRS out of a 04 Cobra into a 93 Cobra has anyone on here done it yet if so how hard? I have a friend that installed on into his 95 Cobra and it basically bolted right up I am just wondering if anyone on here has done it to their fox body if so post up some pictures. Thanks for any help! EddieCurrently Own!
1987 Gt T Top Red
1993 Gt Red/ Black
1993 Lx White Summer Edition Bought 1-6-07
1993 Cobra Teal/Black Bought 5-20-06 #4564
1993 Cobra Teal/Opal Bought 3-3-07 # 187
1993 Cobra Black/Gray 6-9-04 Bought # 3999
1993 Gt Convertible Triple Black 306
1995 Rio Red Cobra Build #1536
03-16-2008, 12:00 AM #2
I have seen pictures of one done on a fox... might be able to google it. I don't like the look on a fox body because it pushes the wheels so far out. The 99-04 width is even wider than the 93 Cobra/94-98 Mustang by another 1/2" per side. You will have to run a custom wheel with a lot of offset to keep the wheel under the wheel well.
As far as attachment points I would think it would be an easy bolt in. You might have to get a custom built driveshaft due to length differences???Daryl
'93 Cobra "R" (#59).......'07 GT500 Coupe VB
'93 Cobra "R" (#39).......'93 Coupe 5.0/5spd
'00 Cobra "R" (#36).......'84 Coupe 5.0/5spd
'93 Cobra Red(#621).....'84,'86,'86 SVO's
'03 Ford SD CC 4x4 7.3 PSD
03-16-2008, 12:07 PM #3
Know a few SVO guys have done it. Will search the forum and see what I can find for ya
Joe04 SY Cobra- New Toy
04 F250 PSD- Beater
04 CO SVT Focus - Wifes
68 Cobra Jet Torino- Money pit
93 S Trim LX
1993 Red Lightning. #4273
98 Black Cobra
1993 Teal on Black Cobra #2420
2002 Silver L #1901
2003 Black marauder
99 Saleen Explorer
86 Jalepeno red SVO
89 Saleen Stang
03-16-2008, 02:47 PM #4
SubscribingRed 93' with a cogged NOVI 2k, R331
Black 93' with a Flowzilla 2.2 Kenne Bell
03-16-2008, 09:46 PM #5
Please document the process. I'd like to see Before/During and after pictures.2003 Cobra 10th anniversary Black VERT
Build Date: June 6, 2003 (Friday)
4195/5082 total Verts.
229/2003 10th Anniversary.
1993 Mustang 5.0 Coupe Black/Black 5 Speed
5 lug/4WDB, 13inch Cobra's up front. 3.73, 99 Polished Cobra wheels.
2002 Mustang GT Black/Black VERT. Automatic. 13 inch Cobra brakes up front ("Plain Mach 1 style") , 3.73 gears, 99 Polished Cobra Wheels, 2003 Cobra folding mirrors, 2004 Cobra Cloth top!!
03-17-2008, 09:03 AM #61993 Black Mustang GT w/ blk interior
Terminator motor w/ 2.9 Whipple, T-56 Magnum, MM suspension, BBS RKs and the 600hp club - MM&FF Feb. 2014 Cover and Feature / MM&FF Jan. 2015 - Top 10 Stangs
1993 Teal Mustang Cobra w/ blk interior #4436, 1 of 185
Stock except for 3:73s and Flowmasters
03-17-2008, 12:46 PM #7
- Join Date
- March 2008
- left coast bias SLC
I got done helping my girl with her's over the winter. It was pretty straight forward except for some welding.
The bolt holes where the secondary dampeners bolt to the frame don't line up with the bracket from the IRS so that has to be welded.
Also, you have to pull the yoke off your solid and install it on the terminator diff if you want to use your stock driveline.
Other than those two things and some brake line and e brake cable swaps, it's quite litteraly bolt on.
Last edited by SVTHII; 03-17-2008 at 12:49 PM.
03-18-2010, 02:05 PM #8
REVIVING... going to do this swap (hopefully) next week. I should have a youtube video doc when Im done. I think I've seen all there is to see in cyberworld--time to jump in. Using the IRS from a 2001--this was the upgraded 31 spline half shafts- not quite as strong as the 03-04, but better than the 99. This rear has the same size pinion flange as the fox so no reflanging or ds yoke swaps. Will post up soon...*****NEED T5 OR TREMEC SERVICE??? ROSEHILLPERFORMANCEPARTS.COM --- THIS PLACE IS THE BUSINESS!!!***** Gen.24:12"...God grant me good speed..."Black 93 Cobra #3591 w/DSS level 20 331, TFS Track Heat Intake, Crane XE274HR cam, MM strut tower brace, FMS subframe connectors, Ram Sure Grip clutch, UPR clutch quadrant, 255lph fuel pump, front UPR suspension w/handling upgrades, (now)4-pt rollbar, (coilovers w/350lb QA1 springs and 01 Cobra springs in the rr), '03 Cobra brakes/01/03 hybrid Cobra rearend (IRS) with hardtail mod, 3:27's, Tubular k-member, Tri-axe shifter,HP 18x8.5 wheels...all this stuff ACTUALLY works well together! :rolling
AMSOIL DEALER- GET SOME
03-19-2010, 03:16 PM #9
I just put one in back in january. look on page 8 of the following link for the IRS install.
[ame="http://www.modularfords.com/forums/showthread.php?t=141915"]CLICK HERE[/ame]2013 GT500 - Black, black and black
1992 GT - 92 GT/03 Cobra hybrid, Termifoxinator
2013 Ducati Hyperstrada
03-21-2010, 03:06 PM #10
03-21-2010, 09:09 PM #11
03-22-2010, 11:00 PM #12
MikeC the link was excellent! I couldn't read it at work cause its blocked... I did it today (the swap). I was gonna make a major deal (video) out of it-- but you guys have already covered it... I did the rear subframe mod like the gent on the modded forum: I added a tab so that I could use the factory quad shock bolts. I was unable to get the brake line I needed to run it in front of the shock but how my 98 cobra rear end install had the brake line, it runs in front the shock and ever-so-carefully snakes its way around the upper control arm... I will watch VERY CAREFULLY! Thanks for all of the info and much props to mouthbreather racing and everyone else whose work i honorably 'borrowed'. The install went as scheduled with no issues that werent foreseen and took me all of eight hours.... By myself. With only a pair of pliers. Just kidding. Thanks for all of your information!
Last edited by bat-stang; 03-22-2010 at 11:07 PM.
03-23-2010, 03:10 PM #13
03-23-2010, 11:16 PM #14
Just finished the conversion (exhaust and final stuff)--night and day ride difference! The swap was really a breeze. I may have missed it; which rear spring works best with this swap so that im not doing the 'rear skyjacker' look...
Last edited by bat-stang; 03-25-2010 at 05:25 AM.
03-29-2010, 03:53 PM #15
thats a detailed post on the swap.... will come in handy
03-29-2010, 04:49 PM #162004 svt cobra vert, competition orange, #0052, built 10/8/03 (original owner)
2.80 billetflow pulley/idlers, ret tune, php airbox, bassani x-pipe, borla stingers, mcleod rxt, mgw shifter, tru-trac, 3.73, ftbr bushings, lpw cover
450/456, 1.645/7.569/92.92 irwindale
2003 svt cobra coupe, sonic blue, #, built 9/9/02
2.93 billetflow pulley/idlers, ret tune, php airbox, bassani x-pipe, borla stingers, mcleod rxt, mgw shifter, wavetrac, 4.10, ftbr bushings, frpp cover
444/453, 1.618/11.633/120.06 famoso (stock clutch)
2004 ford f-150 stx, regular cab flareside
06-13-2011, 10:07 PM #17
Just finished mine except exhaust and wheels that i plan on running. For now have 96 GT "Tri-star" wheels 17x8 w 245's and they fit just need to roll the lip. Ill post pics when i get my wheels. It was pretty simple besides the flare i had to do on the main line under the car!POS!
1991 LX 5.0 Hatch now -> 4.6 DOHC w/ IRS and Kenne Bell:rolling
2001 HD F150 with some kind of whine under the hood -Sold