URGENT rear end help

wtf? heck no. first off they are like 14.95 each for cheapo replacements. second off they take about literally 20 seconds a side to fix. just take the nuts off and put the new one back on. third off, Thats just there to stop wheel hop it has no bearing on how the car sits...like at all. I'm pretty sure they are blown, every enthusiast driven mustang i've seen has the quad shock blown. They're built like crap unless you get those high performance ones.

take them both off and see if the car sits level, then you'll know if thats the problem. the car doesn't need them to be drivable..then find a new shop
 
wtf? heck no. first off they are like 14.95 each for cheapo replacements. second off they take about literally 20 seconds a side to fix. just take the nuts off and put the new one back on. third off, Thats just there to stop wheel hop it has no bearing on how the car sits...like at all. I'm pretty sure they are blown, every enthusiast driven mustang i've seen has the quad shock blown. They're built like crap unless you get those high performance ones.

take them both off and see if the car sits level, then you'll know if thats the problem. the car doesn't need them to be drivable..then find a new shop

+1 Do this one yourself, it is VERY easy. If you don't see a significant change (as expected), put them back on and find a new mechanic.
 
Just to clarify - it is as if my whole rear end has shifted about 1.5 inches to the right side. However, car drives straight. I've got two KYB's on the way. Looking at a design of the axle and how it would look off the car, and looking at how those quad shocks mount up to the rear, I can see how having just one, and not both, going out could cause a shift to the opposite side (one side pushing, and no reciprocal force on the other side). Shop said none of the linkages, arms, or bushing are shot. If this doesn't work, then it's prybar time baby!
 
First off, you got ****ing raped if you paid $200 for one quad shock/replacement. As stated, they are cheap and I can have one finished and the car ready to roll in about 15-20 minutes with one floor jack, a ratchet, and one socket and an adjustable wrench.

Second of all, the quad shock has nothing to do with centering the axle at all in any way, shape, or form. There are a decent amount of people that ditch the quad shocks totally once they get a nice set of LCA's.

The axle shift is fairly common unfortunatly, my car has the same issue... like I said about, 3/4" to 1" if not more of a rightward shift on the rear axle.

Nothing is tweaked on mine either.
 
That's price for 2 KYB quads, which are beefier and not prone to quick blowout like factory spec. Would adjustable control arms bring things back into center? I'm going to throw on a hubcentric spacer on the left hand side for now to make things at least appear to be even. Looking into a set of upper/lower control arms now as well.
 
I don't care how beefy they are, you could of bought used LCAs for the price of those 2 lousy KYB Quad shocks you just paid 200 something dollars for!!! especially with those 3:73s and that wet shot, you could of really been making time in the 1/4 with LCAs. I've seen those KYBs before, they're better than stock but i'm sure its still useless. theres only so much that such a cheap fix for wheel spin like that can do. Not to mention that KYB quad is huge, i dont even know if i can fit the tires i wanna fit back there with those installed.

If its not too late, i would re consider your order. TAKE BOTH QUAD SHOCKS OFF and see if the car sits diffrent (which i can guarantee it won't) and you saved your self 200 bones.

A lot of mustangs have issues with the way the rear sits. All the 79-04 mustangs i've seen sag on one side in the back atleast a little bit and if i sit there and stare for an hour i sometimes see some stangs that have one side of the tire sticking out just a tad more than the other but nothing like what your describing. Something needs to be hammered or replaced on your car, and it ain't no dang quad shock.
 
UPDATE: quad shock is bent (the rod that slides into the piston) and blown out, went to the mechanic today. Heading over to racer walsh, local mustang parts store, to pick up upper and lower control arms to throw on, I am keeping the upgraded quads as well. This isn't just a 1/4 mile car, I enjoy driving this car to and from work occasionally as well, which is why I'm going to keep the quads on. No idea how the quad got bent, I've never hit a curb. However, there are some major potholes around here that I may have hit at an odd angle.
 
If you use your car for 1/4 mile SOLELY, it's reasonable to take the quads out. For overall drivability and comfort, leave them in. I am not adding any new pieces to the suspension. It is still a 4-link set up. The specs of the pieces will be changing with the 4-link when these new parts go on. So, there would be no reason to remove the quads, as they stabilize the rear end's alignment.
 
The quads stabalize the rear end alignment?
anyway, did it fix your problem? I'd think i'd take it to a body shop, they probably see things like this frequently. Maybe you can report the problem back to us beause i've heard of this sort of thing happening a lot but never read a solution.
 
ive junked my quads, didnt affect the ride qualty at all. and for rear alignment they help, but the parts that hold the rear alignment correct or the uca's. to support this theory; they made as a triangulated style, if you will. now im thinking if your quad shock was bent, kinda sounds like you or someone sideswipped a curb or pothole, or maybe not. im not making accusations, so please dont get mad. thats about the only way something gets bent.might really need to double check where the uca's mount to the body, and check for damage. theres a lot of us that dont run quads here in the town i live in, and still are daily drivers and weekend worriers.
 
I've definitely hit a pothole or two (jacksonville is a huge city with all road/highway funding going towards building new highways, instead of fixing local roads). Upper and lower control arms are on the way, they are granatellis. I'm not opting for MM's or UPR's or Steedas. I don't race my car in SCCA or anything like that so I can't justify spending 500 dollars on upper & lower control arms. Parts should all arrive by tuesday, will update on whether or not that fixes the problem.
 
You picked a good replacment brand for the quads, and LCA's will be a nice addition.

Not trying to be a downer, but the new quads arent going to fix the problem. I hope you prove me wrong though...:nice:
 
if you look at a suspension diagram, it keeps the axle from moving too far forward on one side, or too far back. IE right side moving forward, left side moving back. It also, along with the control arms, provides a source of stability/alignment for the rear axle.
 
its normal for mustangs to have the off center rear axle, next time you see a few mustangs in a parking lot, put on your black facemask, put a crowbar shaped ruler in your hand and carefully measure.. i would guess that 75% of mustangs are off center

like someone already said, check your torque boxes if you want to check something. them like to rip out with too much power.. or too many crappy roads