Don't know of a better way to describe this. Under moderate throttle (enough to chirp but not light up the tires) on the 1-2 upshift the rear seems to move/kick sideways. Everything is tight and the lower control arms were replaced a couple of years ago along with the FRPP suspension system in my sig. I'm thinking maybe the lateral rear shocks but some say they are not particularily important although Ford must of thought otherwise. They are probably original. Do I need a Panhard Bar??
Do I need a Panhard Bar??
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94-302-vert
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Check the condition of the bushings in the rear arms... My car did this until I went poly throughout.
I would think that a panhard would not fix the problem as likely the car is compressing one (or more) bushings to the point that the rear end is essentially turning under the car (turning L/R not rotating up/down).
I would think that a panhard would not fix the problem as likely the car is compressing one (or more) bushings to the point that the rear end is essentially turning under the car (turning L/R not rotating up/down).
parchisi
New Member
I say get a decent set of aftermarket control arms, as well as replacing the uppers. I know that Maximum Motorsport LCAs are pretty legit, but others would probably do the job well also at less cost. Although I'm no suspension expert, I don't think the lack of a panhard bar is your problem.
A panhard bar helps to locate the axle side to side so I think it would help. It isn't necessary, but a very nice upgrade. I would start with new bushings, just like everyone else suggested.
As I noted the lower control arms (Granatelli I believe) were replaced a couple of years ago. Haven't touched the uppers though. May have to make this one of my winter projects.
94-302-vert
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desertcox05
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Stanger007
Founding Member
Car Nut
Founding Member
I went with FRPP uppers and MM lowers about 2 years ago to replace the bone stock stuff. Unreal difference overall. To me, it was as noticeable a difference as getting new springs, shocks, and struts. Just a much better ride with more predictable handling.
I've got a panhard bar and it is really nice to have, but as others have stated, it really does its job while cornering. I'm sure a PHB may help a little in other areas, but it has to be minimal.
With your KB blower and other engine upgrades, I'd say put a PHB on your list, but not until you've fixed the rear control arms (upper and maybe lower). Not sure which catback you have, but if it is 2.5" tubing that goes over the axle, you may need to get custom tubing put in between the mufflers and the tips. I did this on my Bassani catback and it worked out great. No fitment issues at all, but the Bassani pipes were never going to clear the PHB without some rubbing and other contact due to suspension travel. Cost is not much either, so don't think it will cost an arm and a leg. Custom tubing ran me about $150 total including the install.
I've got a panhard bar and it is really nice to have, but as others have stated, it really does its job while cornering. I'm sure a PHB may help a little in other areas, but it has to be minimal.
With your KB blower and other engine upgrades, I'd say put a PHB on your list, but not until you've fixed the rear control arms (upper and maybe lower). Not sure which catback you have, but if it is 2.5" tubing that goes over the axle, you may need to get custom tubing put in between the mufflers and the tips. I did this on my Bassani catback and it worked out great. No fitment issues at all, but the Bassani pipes were never going to clear the PHB without some rubbing and other contact due to suspension travel. Cost is not much either, so don't think it will cost an arm and a leg. Custom tubing ran me about $150 total including the install.
The consensus opinion says to first replace the upper control arm bushings. Is there a recommendation about just replacing the bushings in the stock units or should I look at replacing the upper control arms instead?
My coupe did the same thing when I changed the lower control arms. I was stumped as to it cause, it felt as if I was go to lose control of the car, the rear of the car was all over the place. I drove my car to a friends, he walks around it to give it a look over and tells me me rear end sat more towards the pass side than it should. I took a look and sure enough it did, i ended up putting the stockers back on and it solved that problem.
Car Nut
Founding Member
The FRPP upper control arms don't cost that much, so I'd suggest getting new ones. You'd also need to get new bushings for the rear diff (available at MM and probably many other places). If you are satisfied with the RLCAs, you should be in good shape.
The RUCAs only include one set of bushings, so don't forget to replace the bushings that are attached to the rear diff. MM even sells a tool to make the extraction of the stock bushings easier. Rubber bushings are recommended at both ends of the RUCAs, so that's why I recommend going with FRPP.
The RUCAs only include one set of bushings, so don't forget to replace the bushings that are attached to the rear diff. MM even sells a tool to make the extraction of the stock bushings easier. Rubber bushings are recommended at both ends of the RUCAs, so that's why I recommend going with FRPP.
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