Z's r Best

I have 295/50-16's on the back of my IROC (I know, too big, but they were on it when I bought it). The right rear tire is rubbing the inside of the fender lip on a hard bump. I've noticed that the right rear tire is closer to the fender lip than the left rear tire (the axle appears to be shifted towards the passenger side of the car). The rear wheel spacers are in place and the same width. Will it require one of those adjustable aftermarket panhard rods to correct this, or is there someway to do it with the factory set up? Thanks.

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Z's r Best

Engineboy

If its lowered, you need a adjustable pan hard bar.

The stock stuff doesnt have any adjustments.
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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
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and 2 POS commuters...

R.I.P. #3
"He can see air"

[This message has been edited by Engineboy (edited September 03, 2001).]

RB83L69

You can't measure stuff against the fender wells. The fenders are purely cosmetic, as opposed to being part of the workings of the car. Moving the rear end around to line up your tires up to the wheel openings makes about as much sense as moving your motor mounts to center the engine between the front fenders. That's a critical function of the car, just like aligning the front end; you wouldn't align your front end to make the tires match the fenders either.

Look at the clearance fron the inside of the tire to the car's actual structure; with tires that wide they should be well within an inch of the spring pockets or the bump stop brackets. Measure that spacing instead, and see if the axle is centered there, that's the real car, the fenders are just hung out there for looks. If the spaces aren't equal, then you need an adjustable Panhard bar.

Once you get that right, then you need to just bend the cosmetic stuff until it aligns correctly with the functional stuff; not the other way around.

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"So many Mustangs, so little time..."
ICON Motorsports

nicmike85

Your axle alighnment at static (not active) is not important. When you drive the car will drop a little causing the axle to straighten up and to become square to the front suspension. At high speeds lift will cause the axle alighnment to change also. These changes may be minor but this constantly steers the rear axle. This is why the car may feel funny when you hit a large bump or corner hard.