Tire to body contact

SkurdalenFox · 06-08-2006, 01:22 PM

Somewhat recently I switched from stock springs to H&R Sport springs on my 92 two door. Other relevant items – 96+ rear end, 99 cobra wheels (17x8) with 245x45 tires. The factory bump stops are in place on the frame, but because this was a four cylinder car, there is no pinion snubber.

Going over large bumps, there was some tire to fender contact in the rear. So, I rolled the rear fenders a modest and equal amount. It only took a slight adjustment to get the LH fender clear, but for the life of me, I can’t get the RH side to stop rubbing. If I just keep beating on it I’ll eventually get it clear, so what I’m really concerned with here is why the LH side took minimal manipulation, while the right has been so troublesome. I know production tolerances are about a mile wide on this car, but I’m left wondering if this could this be a symptom of something else being wrong.

The first thing I checked was the control arm mounting locations on the frame. Everything looks intact, and as straight as it ever was.

Any suggestions for what else I should check?

Italian LX · 06-08-2006, 01:54 PM

I would guess most Mustangs don't have the rearend directly centered. I know mine is visually off and I remember Nathan actually had a measurement on how far off his was when he installed his panhard bar.

slvrbullit · 06-08-2006, 02:15 PM

Also Todd (rtgreen) had issues with his coupe on the passenger side being lower in the rear than the driver side.

SkurdalenFox · 06-08-2006, 02:54 PM

Quote:

Originally Posted by slvrbullit

Also Todd (rtgreen) had issues with his coupe on the passenger side being lower in the rear than the driver side.

Hmm, was he able to solve this?

QWKSNKE · 06-08-2006, 04:45 PM

Another reason you are seeing this is due to using the 96 rearend. I can't remember the measurment off hand but the 96-98 setups were 'x' amount wider than the 94-95's which were wider than the foxes.

Seems like the average rearend is off center by up to 3/4"

Sendero · 06-08-2006, 05:07 PM

Quote:

Originally Posted by Italian LX

I know mine is visually off and I remember Nathan actually had a measurement on how far off his was when he installed his panhard bar.

About 1-3/8" to the passenger side.

Quote:

Originally Posted by QWKSNKE

Another reason you are seeing this is due to using the 96 rearend. I can't remember the measurment off hand but the 96-98 setups were 'x' amount wider than the 94-95's which were wider than the foxes.

I'm trying to find the measurements, but I thought 94-98 axles were the same length and it only changed in 99 due to the body.

Italian LX · 06-08-2006, 05:41 PM

Quote:

Originally Posted by Sendero

I'm trying to find the measurements, but I thought 94-98 axles were the same length and it only changed in 99 due to the body.

It also changed in '93 with the introduction of rear disc brakes.

QWKSNKE · 06-08-2006, 07:36 PM

Quote:

Originally Posted by Sendero

I'm trying to find the measurements, but I thought 94-98 axles were the same length and it only changed in 99 due to the body.

I know the front spindles are different between 95-96 (been researching for the SVO's big brake upgrade

) so I would think the rear may have the added offset

rtusnake · 06-08-2006, 09:56 PM

Pretty sure they went up 3/4 of an inch on each side in 94 because of the disc brakes then another 3/4 in 99 up

ncontt · 06-09-2006, 05:28 AM

Quote:

Originally Posted by rtusnake

Pretty sure they went up 3/4 of an inch on each side in 94 because of the disc brakes then another 3/4 in 99 up

http://svo73mm.cjb.net/ everything you'll ever need to know about brakes...have a nice day

06-08-2006, 01:22 PM	#1
SkurdalenFox Senior Member Join Date: Sep 2005 Location: Boulder, CO Posts: 463	Tire to body contact Somewhat recently I switched from stock springs to H&R Sport springs on my 92 two door. Other relevant items – 96+ rear end, 99 cobra wheels (17x8) with 245x45 tires. The factory bump stops are in place on the frame, but because this was a four cylinder car, there is no pinion snubber. Going over large bumps, there was some tire to fender contact in the rear. So, I rolled the rear fenders a modest and equal amount. It only took a slight adjustment to get the LH fender clear, but for the life of me, I can’t get the RH side to stop rubbing. If I just keep beating on it I’ll eventually get it clear, so what I’m really concerned with here is why the LH side took minimal manipulation, while the right has been so troublesome. I know production tolerances are about a mile wide on this car, but I’m left wondering if this could this be a symptom of something else being wrong. The first thing I checked was the control arm mounting locations on the frame. Everything looks intact, and as straight as it ever was. Any suggestions for what else I should check?

06-08-2006, 01:54 PM	#2
Italian LX Daddy x4 ...we're done Join Date: Dec 2004 Location: Oxford, AL Posts: 11,551	Re: Tire to body contact I would guess most Mustangs don't have the rearend directly centered. I know mine is visually off and I remember Nathan actually had a measurement on how far off his was when he installed his panhard bar. __________________ -Brian '86 Mustang GT Convertible '88 Mustang LX coupe '11 Odyssey TE '21 Insight Touring

06-08-2006, 02:15 PM	#3
slvrbullit Super Moderator Join Date: Dec 2004 Location: on the water Posts: 1,280	Re: Tire to body contact Also Todd (rtgreen) had issues with his coupe on the passenger side being lower in the rear than the driver side. __________________ 2012 Jeep Wrangler Unlimited--- too many mods to list, about to be sitting on 1 ton axles. 2000 Ford F-350 Dually Lariat LE Crew Cab Short Box 7.3 auto 168,000 miles

06-08-2006, 04:45 PM	#5
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Re: Tire to body contact Another reason you are seeing this is due to using the 96 rearend. I can't remember the measurment off hand but the 96-98 setups were 'x' amount wider than the 94-95's which were wider than the foxes. Seems like the average rearend is off center by up to 3/4"

06-08-2006, 09:56 PM	#9
rtusnake Halfshaft Killer Join Date: Mar 2005 Location: The Kingdom Posts: 3,910	Re: Tire to body contact Pretty sure they went up 3/4 of an inch on each side in 94 because of the disc brakes then another 3/4 in 99 up __________________ 03 Cobra 06 F250 (\__/) (='.'=) (")_(")