1998 Cobra rear end

dparkinson · 07-13-2000, 06:48 PM

I am new to the game. I want to put an independant rear end on a 1998 Cobra to make it more like the 1999 Cobra. What parts, need to be replaced? I was told a new differential and a new axle (two arms). Are their any issues I need to worry about? Differences in differential gearing? Please excuse my ingnorance in that I am trying to learn! I could be totally wrong all together.

97snakedriver · 07-13-2000, 07:13 PM

The '99 Cobra IRS bolts on to the same mounting points as the 4 link you have now. So basically you buy it as one big unit. You also need to do some exhault work. On the live axle the pipes do the up and over. On the IRS they come together and run under the differential, which is fixed in position.

If you look on EBay or in the classified sections of sites like this one, you can propbably be able to find one.

A couple of people around here just sold them, so they can tell you how much to expect to pay for all this. Atleast $2500-$3000 I imagine.

93CobraR · 07-13-2000, 07:22 PM

Check out this link for info on one, plus the other for pictures. http://www.corral.net/Forums/Forum2/HTML/013102.html
for a pic: http://www.fordcobra.cc/irs.JPG
Oh yeah, real nice guy.

------------------
87 GT, 4 inch cowl hood, long tubes headers,h-pipe,Flows,BBK cold air, Mass air,70mm MAF, 1.7's, 1" spacer,underdrive pulleys,Pro 5.0, King Cobra, Adj. fuel Reg., Lakewood Lift Bars,50/50's,subframes, 4.10's.
Best time 13.012
Best MPH 104
Best 60' 1.816

Visit my site at:
http://www.geocities.com/cobrar93_2000/MyPage.html

[This message has been edited by 93CobraR (edited 07-13-2000).]

S Howard · 07-18-2000, 09:19 PM

Check out mustangworld.com http://www.fordcobra.cc/axel.html
this guy did just the opposite. Swapped an IRS for a live axle.

93CobraR · 07-18-2000, 09:34 PM

Thats who I was talking about S Howard. lol

S Howard · 07-18-2000, 09:47 PM

93CobraR--I did not mean to intrude however, being a mechanical engineer, I prefer to have as much information as possible. That way an informed decison can be made.

93CobraR · 07-18-2000, 11:02 PM

No problem, Howard. I thought it was funny cause of all people we happen to be talking about the same one...

07-13-2000, 06:48 PM	#1 (permalink)
dparkinson Registered Member Join Date: Jul 2000 Posts: 1	1998 Cobra rear end I am new to the game. I want to put an independant rear end on a 1998 Cobra to make it more like the 1999 Cobra. What parts, need to be replaced? I was told a new differential and a new axle (two arms). Are their any issues I need to worry about? Differences in differential gearing? Please excuse my ingnorance in that I am trying to learn! I could be totally wrong all together.

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07-13-2000, 07:13 PM	#2 (permalink)
97snakedriver Registered Member Join Date: Jun 1999 Location: Blacksburg, VA Posts: 1,526	The '99 Cobra IRS bolts on to the same mounting points as the 4 link you have now. So basically you buy it as one big unit. You also need to do some exhault work. On the live axle the pipes do the up and over. On the IRS they come together and run under the differential, which is fixed in position. If you look on EBay or in the classified sections of sites like this one, you can propbably be able to find one. A couple of people around here just sold them, so they can tell you how much to expect to pay for all this. Atleast $2500-$3000 I imagine.

07-13-2000, 07:22 PM	#3 (permalink)
93CobraR Registered Member Join Date: Oct 1999 Location: Cincinnati, Ohio Posts: 1,574	Check out this link for info on one, plus the other for pictures. http://www.corral.net/Forums/Forum2/HTML/013102.html for a pic: http://www.fordcobra.cc/irs.JPG Oh yeah, real nice guy. ------------------ 87 GT, 4 inch cowl hood, long tubes headers,h-pipe,Flows,BBK cold air, Mass air,70mm MAF, 1.7's, 1" spacer,underdrive pulleys,Pro 5.0, King Cobra, Adj. fuel Reg., Lakewood Lift Bars,50/50's,subframes, 4.10's. Best time 13.012 Best MPH 104 Best 60' 1.816 Visit my site at: http://www.geocities.com/cobrar93_2000/MyPage.html [This message has been edited by 93CobraR (edited 07-13-2000).]

07-18-2000, 09:19 PM	#4 (permalink)
S Howard Registered Member Join Date: Jun 2000 Location: Orlando, FL Posts: 195	Check out mustangworld.com http://www.fordcobra.cc/axel.html this guy did just the opposite. Swapped an IRS for a live axle.

07-18-2000, 09:34 PM	#5 (permalink)
93CobraR Registered Member Join Date: Oct 1999 Location: Cincinnati, Ohio Posts: 1,574	Thats who I was talking about S Howard. lol

07-18-2000, 09:47 PM	#6 (permalink)
S Howard Registered Member Join Date: Jun 2000 Location: Orlando, FL Posts: 195	93CobraR--I did not mean to intrude however, being a mechanical engineer, I prefer to have as much information as possible. That way an informed decison can be made.

07-18-2000, 11:02 PM	#7 (permalink)
93CobraR Registered Member Join Date: Oct 1999 Location: Cincinnati, Ohio Posts: 1,574	No problem, Howard. I thought it was funny cause of all people we happen to be talking about the same one...

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