Suspension Springs, Shocks, Brakes

I hear some clunking in the back with CM Springs in my 09 SS/TC.

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Old 02-21-2011, 09:54 PM
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Exclamation I hear some clunking in the back with CM Springs in my 09 SS/TC.

Ever since I lowered my car with the CM Springs, I have been hearing some clunking in the back and I don't know why. I don't hear any up front, just in the back when I drive slow or hit a speed bump. What would be the cause? How can I fix it? My car is going straight as an arrow, nothing is dragging to the left or right, so it can't be the control arms up front. I don't have a anti rear sway bar yet. I'm running my 3" catless DP down with my stock exhaust.
Old 02-21-2011, 10:16 PM
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haha my pedders do this sometimes too take out the spring and see if there rightside up aka not upside down and take all of the **** out of your trunk and then drive around with the backseat down it helps alot lol
Old 02-21-2011, 10:18 PM
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I hear others who have SSC or CM's don't have this issue. I'm thinking it could be a loosen bolt in the back or its hitting the exhaust. If you remember my other forum, I posted what it looked like underneath.

Old 02-21-2011, 10:19 PM
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your positive its not coming from the front? I thought my rattle was coming from the back at first, till I took apart the control arms, bad bushing.
Old 02-21-2011, 10:26 PM
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my car isn't dragging left or right. My end links are fine so far. But, I'm gonna get a wheel alignment done and hopefully it will go away.

Last edited by efactor; 02-21-2011 at 10:34 PM.
Old 02-21-2011, 10:32 PM
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dont think an alignment will fix it did you get aligned after lowering your car yet tho? always a good thing to do
Old 02-21-2011, 10:35 PM
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nope. never got one. my car never pulled to the left or right, just straight as an arrow.
Old 02-21-2011, 10:44 PM
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well you should always get one after lowering your car
Old 02-21-2011, 10:45 PM
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Originally Posted by 09sscalicobalt
well you should always get one after lowering your car
Troof. Your toe may be off, which won't make your car pull either way, but will cause your tires to wear out quickly.
Old 02-21-2011, 10:46 PM
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just thinking it could be a loosen bolt or not tighten down with the shocks or the exhaust is hitting it. but, yes I'm gonna get a wheel alignment done and check to see if the exhaust is hitting or the shocks bolts are loose.
Old 02-21-2011, 10:50 PM
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just tell them to torque all your suspension bolts down i always do it when i get an alignment and have them set your air pressure to the same all the way around if you dont your alignment will be off sounds dumb but its true
Old 02-21-2011, 10:54 PM
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sounds like a plan to me. gonna spend the $80 to get it done.
Old 02-21-2011, 11:03 PM
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yea mine was like $79 bucks too lol sucks but you wont have to get it again for awhile if you track or auto x id recomend it once a year
Old 02-21-2011, 11:07 PM
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I only hear this clunk when I hit a speed bump or drive slow. I don't know if its related to coil bind in the back. I could put the stock springs back in the back and leave the fronts be to isolate the variable.
Old 02-21-2011, 11:17 PM
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you could or just sell them and get pedders lol
Old 02-21-2011, 11:26 PM
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Exhaust hitting the axel
Old 02-21-2011, 11:30 PM
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well it turns out they could be upside down, cause I talked to Tommy about that one. The closets coils should be on the bottom. So, I'm gonna have fun getting that corrected and wheel alignment and should be golden. If I sell anything its gonna be the 3rd gens and I might go back to Depos, have Gestapo paint my rims gun metal.
Old 02-21-2011, 11:31 PM
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lol nice
Old 02-21-2011, 11:32 PM
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rear springs on this car is the easiest one bolt and thats it lol pedders were a bitch to fit into the bumpstops tho
Old 02-21-2011, 11:36 PM
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putting the one near the stock exhaust was a bitch getting out and putting back on correctly.
Old 02-22-2011, 12:00 AM
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well here is the pic from him



Now I need a fat body to hold down the rear beam down. LOL.
Old 02-22-2011, 12:04 AM
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i know its not the same, but after i put my sway bars on my ss/sc i have a random pop at times. i have no idea where its coming from.
Old 02-22-2011, 12:06 PM
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I did turn them the right way from what Tommy said. Tighten down the shock bolts. So far, I hear a little, but not a loud clunk that heard before. I didn't hear any when I went over speed bumps. So I'm gonna let these settle for awhile.
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Quick Reply: I hear some clunking in the back with CM Springs in my 09 SS/TC.



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