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Author
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Topic: T-BIRD IRS
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Dusty122
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Member # 4480
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posted
 
 
Im thinking of going to a t-bird irs on my 90 drop top. i know its kinda weird but has anybody done this or seen any write ups on the net about doing it. i was going to go with the cobra irs but ive been told the t-bird one will work better for my application.
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90 Mustang GT roadster
top, backseat, windows, mirrors, handles, wipers, springs, heater, a/c (delete all) that stuff is for chumps n e way
Posts: 219 | From: Camarillo | Registered: May 2004
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JohnB
Tech Moderator
Member # 969
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posted
Why would you want to install a 7.5" rear in place of a 8.8?
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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Dusty122
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Member # 4480
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posted
im more concerned with heighth than stregth. im not planning on make this car into anything much faster than stock. this is the show car. later will come the fast mustang. ive been told that the cobra irs doesnt camber in when its compressed where the tbird ones do.
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90 Mustang GT roadster
top, backseat, windows, mirrors, handles, wipers, springs, heater, a/c (delete all) that stuff is for chumps n e way
Posts: 219 | From: Camarillo | Registered: May 2004
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Blind
2.3L
CAFords OG
Member # 3052
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posted
quote:
Originally posted by JohnB:
Why would you want to install a 7.5" rear in place of a 8.8?
his suspension consists of an air bag kit, and the solid rear axle is limiting how far the rear can drop. The front tires tuck in when he drops it and the front tires lay in the wheelwell top.
Not sure whats holding the rear up, but have seen pics of Tbirds with bags that lay the rear as much as the front.
we've tried pulling the shocks, the pinion snubber is out, the bumpstops are out, the quadshocks are off, the gas tank was pulled...I think the rear is being limited by a bind in the control arms at the angle it gets to, IE why I recommended to him to try and find an IRS
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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BlueOvalRacing
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Member # 1531
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posted
JBA did a Mustang years back with the IRS from a Super Coupe. It was at least 10 yrs ago though...
Posts: 1159 | From: Pioneer | Registered: Jul 2002
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JohnB
Tech Moderator
Member # 969
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posted
The solid axle is not the limiting factor. The upper control arms are.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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Dusty122
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Member # 4480
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posted
then am i basically screwed if the up control arms are the problem. is there anything i can cut out to let them go up higher? or its as low as im gonna go short of a full custom syspension
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90 Mustang GT roadster
top, backseat, windows, mirrors, handles, wipers, springs, heater, a/c (delete all) that stuff is for chumps n e way
Posts: 219 | From: Camarillo | Registered: May 2004
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Hungry Hippo
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Member # 537
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posted
the irs sounds like a good idea then. the 4 link isnt made for a lot of suspension travel
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05 S4 Avant(wagon)
09 C6 H/C/I
Posts: 2959 | From: east bay | Registered: Nov 2001
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Dusty122
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Member # 4480
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posted
what year tbirds or lincolns should i be looking for to grab the rear from? i know that some where solid axel and have been told the newer ones wont work on a fox. thanks for the help
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90 Mustang GT roadster
top, backseat, windows, mirrors, handles, wipers, springs, heater, a/c (delete all) that stuff is for chumps n e way
Posts: 219 | From: Camarillo | Registered: May 2004
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BlueOvalRacing
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Member # 1531
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posted
89-97 T-bird, no Lincolns until the LS. The T-bird stuff should be easy enough to find in any junk yard.
Posts: 1159 | From: Pioneer | Registered: Jul 2002
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88bird
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Member # 1424
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posted
Lincoln mark VIII (8) will work also. But if its the upper arms, you are having trouble with, get rid of them and run a panhard bar???
The v8's and super coupes had an 8.8 as well.
[ August 30, 2005, 10:32 PM: Message edited by: 88bird ]
Posts: 149 | From: Citrus Heights | Registered: Jun 2002
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