Have gear ? on 8.8 Cobra IRS rear.

Dark_5.0 · 01-15-2003, 10:06 AM

I found a guy that will install gears in my Cobra for $200.00 that works at a Ford dealership

Now all I need to do is buy gears. Does the IRS 8.8 take the same ring and pinion gears as the solid axle 8.8.

I am stuggling trying to decide which gears to get 4.10's 4.30's or 4.56's.

Thanks,

01-15-2003, 02:04 PM

I'd check out this thread. http://forums.mustangworks.com/showt...threadid=33002

3.90s have my vote. I have 3.73s and love them...but if I could do it over...I'd go with the new 3.90s they have available for the 8.8 Mustang rearends. Not sure about the differences with the IRS rear though.

302 LX Eric · 01-15-2003, 03:43 PM

Quote:

Originally posted by Dark_5.0
I am stuggling trying to decide which gears to get 4.10's 4.30's or 4.56's.

I think your Cobra is more of a street car, right? If so, I would go with the 4.10's. Good acceleration, but not overkill for the street/highway use. Plus, it would be a hell of difference from the 3.27s that are in it now. (I believe 3.27's were the stock gear?) 4.56's would be great for a strip Cobra or at least one that sees little street/highway use. JMO.

As for the gears working w/an 8.8 IRS, the Ford tech that is doing the install for you should know.

E

Dark_5.0 · 01-15-2003, 05:45 PM

Quote:

Originally posted by 302 LX Eric
I think your Cobra is more of a street car, right? If so, I would go with the 4.10's. Good acceleration, but not overkill for the street/highway use. Plus, it would be a hell of difference from the 3.27s that are in it now. (I believe 3.27's were the stock gear?) 4.56's would be great for a strip Cobra or at least one that sees little street/highway use. JMO.

As for the gears working w/an 8.8 IRS, the Ford tech that is doing the install for you should know.

E

Yes it is more of a street car. 4.10's....... drag radials and full exhaust should make it a pretty potent street car though

I will get a hoild of the tech tonight and ask him. I just didnt want to bother him at work and figured one of you guys would know.

Thanks,

Conman · 01-17-2003, 11:20 AM

you probably already found out the answer but I bet the modular madness crowd would know more about the IRS than the windsor power folk.

I know you are in here a lot and might not have thought about it but you might get better answers for your cobra questions in the other forum.

Dark_5.0 · 01-17-2003, 12:51 PM

In the mod madness forum if you ask a technical question it will have 100 views and no replies.

Conman · 01-17-2003, 01:55 PM

I browsed around in there a few times but don't really know much about the newer cars and couldn't really care but now that you mention it that is the sort of atmosphere I found there. They aren't real technical. (I know that is kind of general and can't include everyone that visits there)

01-15-2003, 10:06 AM	#1
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Have gear ? on 8.8 Cobra IRS rear. I found a guy that will install gears in my Cobra for $200.00 that works at a Ford dealership Now all I need to do is buy gears. Does the IRS 8.8 take the same ring and pinion gears as the solid axle 8.8. I am stuggling trying to decide which gears to get 4.10's 4.30's or 4.56's. Thanks, __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

01-15-2003, 02:04 PM	#2
Simi Stang Guest Posts: n/a	GEARS I'd check out this thread. http://forums.mustangworks.com/showt...threadid=33002 3.90s have my vote. I have 3.73s and love them...but if I could do it over...I'd go with the new 3.90s they have available for the 8.8 Mustang rearends. Not sure about the differences with the IRS rear though. Last edited by Simi Stang; 01-15-2003 at 02:19 PM..

01-17-2003, 11:20 AM	#5
Conman Registered Member Join Date: Apr 2002 Location: Kingston, Ontario Posts: 351	you probably already found out the answer but I bet the modular madness crowd would know more about the IRS than the windsor power folk. I know you are in here a lot and might not have thought about it but you might get better answers for your cobra questions in the other forum. __________________ '88 lx, Black on Black, check it out here Spent all my money on school, what a dumb mistake I'm old enough to know better, but still too young to care.

01-17-2003, 12:51 PM	#6
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	In the mod madness forum if you ask a technical question it will have 100 views and no replies. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

01-17-2003, 01:55 PM	#7
Conman Registered Member Join Date: Apr 2002 Location: Kingston, Ontario Posts: 351	I browsed around in there a few times but don't really know much about the newer cars and couldn't really care but now that you mention it that is the sort of atmosphere I found there. They aren't real technical. (I know that is kind of general and can't include everyone that visits there) __________________ '88 lx, Black on Black, check it out here Spent all my money on school, what a dumb mistake I'm old enough to know better, but still too young to care.

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