help!!! sounds weird as hell, everythings getting replaced
Like you mentioned above your friend suggested looking into new bushings (yes that would help) But even if you upgrade them I would look into a set of poly bushings. They will hold up a lot better than rubber and to tell the truth I would just look into just upgrade to a complete rear suspension package eliminating all of the stamped flexible lowers and pan hard bar. Another suggestion for you check the hardware as well and make sure nothing is broken. Below is a link to show you what all UMI Performance has to offer.
http://www.umiperformance.com/catalo...lk3kffop0rojm2
If you have any other questions feel free to ask and I will be more than glad to help.
Thanks
Brad
You have a couple of obvious issues you MUST address if you hope to have a car that doesn't ride like complete ****:
1. You have horrible shocks. (You do not have struts.) The damping ability and overall quality is barely sufficient for a bone stock, light duty application...not at all suitable for a performance application and 20" rollers. To make this car livable, maybe even nice, you need Bilsteins if you're on stock springs, and Konis if lowered (dunno how you could be with 20s).
2. Your 20" rims give you virtually no sidewall, so your shocks' lack of damping quality quite literally hits home. Going with 20s REQUIRES you give up some ride quality, regardless of shocks.
Some things we need to know more about:
What suspension parts do you have? Springs? Torque arm? PHB? LCAs? Sway bars? What front shock mounts did you use - GM or other? I suspect your 100k+ mile bushings and joints are shot, contributing to your issue.
Without really good shocks, on 20s, your car will ALWAYS ride like ****. Monroes are a well known brand, but not a quality shock. Sorry...
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You have a couple of obvious issues you MUST address if you hope to have a car that doesn't ride like complete ****:
1. You have horrible shocks. (You do not have struts.) The damping ability and overall quality is barely sufficient for a bone stock, light duty application...not at all suitable for a performance application and 20" rollers. To make this car livable, maybe even nice, you need Bilsteins if you're on stock springs, and Konis if lowered (dunno how you could be with 20s).
2. Your 20" rims give you virtually no sidewall, so your shocks' lack of damping quality quite literally hits home. Going with 20s REQUIRES you give up some ride quality, regardless of shocks.
Some things we need to know more about:
What suspension parts do you have? Springs? Torque arm? PHB? LCAs? Sway bars? What front shock mounts did you use - GM or other? I suspect your 100k+ mile bushings and joints are shot, contributing to your issue.
Without really good shocks, on 20s, your car will ALWAYS ride like ****. Monroes are a well known brand, but not a quality shock. Sorry...
Listen to this guy.
1" difference in wheels can be night and day in ride quality, especially with a bigger sidewall.
You want the best ride, with the most stability you NEED good shocks (nothing you can get over the counter at autozone) and more than likely you need to ditch the wheels for something more like 18" at the very most.
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You have a couple of obvious issues you MUST address if you hope to have a car that doesn't ride like complete ****:
1. You have horrible shocks. (You do not have struts.) The damping ability and overall quality is barely sufficient for a bone stock, light duty application...not at all suitable for a performance application and 20" rollers. To make this car livable, maybe even nice, you need Bilsteins if you're on stock springs, and Konis if lowered (dunno how you could be with 20s).
2. Your 20" rims give you virtually no sidewall, so your shocks' lack of damping quality quite literally hits home. Going with 20s REQUIRES you give up some ride quality, regardless of shocks.
Some things we need to know more about:
What suspension parts do you have? Springs? Torque arm? PHB? LCAs? Sway bars? What front shock mounts did you use - GM or other? I suspect your 100k+ mile bushings and joints are shot, contributing to your issue.
Without really good shocks, on 20s, your car will ALWAYS ride like ****. Monroes are a well known brand, but not a quality shock. Sorry...
Good post!!
I sort of skipped over the part where the OP mentions 20s...Yikes!! Sorry UMI, but 20s, and questionable roads, will NOT be pleasant with poly bushings.
I've used poly bushings in various cars since the late 70s, when they first started seeping into the market. I live in the "snow belt", where the winters wreak havoc with the roads, and in cars with 70 and 60 series tires, poly bushings will work pretty well. My '96 Z-28 was the first car I got that had 50 series tires, and back when the car was a year or two old, I threw a complete set of poly bushings. I had done it with my other cars, so for me it was just "SOP". Short story, I took them out after 1 year...way too rough, on both me, as a rider in the car, and (IMHO) to the car's suspension attachment points....
Seriously though, those modern day cars were designed ground up for those bigger wheels, our cars were not by any means.
You wont ever be riding like those cars on 20s, but to improve your ride quality you would need to be on stock springs at stock height, GOOD QUALITY shocks (something like strano spec bilstiens, or possibly konis to deal with all the extra unsprung weight), as much sidewall as you can get with the right amount of tire pressure.
Personally 20s on the 4th gen look ghetto to me, a good looking 17" or 18" wheel makes all the difference in the world (and you wont be sacrificing ride, launch or handling).

You can lower the car and go with 18s and get the look you want, I think. Either way, I think Konis are your best bet for shocks and will most greatly affect your ride quality.
Still need to know what parts you have on the car now, as asked in my initial post. Also need to know your goals and budget.






