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Rear drop

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Old Dec 7, 2007 | 11:21 PM
  #1  
smythge's Avatar
smythge
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From: WI
Default Rear drop

I'm looking at lowering the rear of my car with Roush Springs, wondering if anything else is required? Any help is appreciated.
Old Dec 8, 2007 | 11:24 AM
  #2  
Aziraphale's Avatar
Aziraphale
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From: Northern Virginia
Default RE: Rear drop

Technically, no, nothing else is required. Many people like to replace the springs, do lower control arm relocation brackets, new lower control arms to adjust the pinion angle, etc. If you're just going for the look and not maximum traction, just lower the rear with the springs and move on with life. If you're building a drag car, replace the rest.
Old Dec 8, 2007 | 09:10 PM
  #3  
smythge's Avatar
smythge
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From: WI
Default RE: Rear drop

ORIGINAL: Aziraphale

Technically, no, nothing else is required. Many people like to replace the springs, do lower control arm relocation brackets, new lower control arms to adjust the pinion angle, etc. If you're just going for the look and not maximum traction, just lower the rear with the springs and move on with life. If you're building a drag car, replace the rest.
I would like to improve looks, butnot at the expense of driveline wear and I don't want to cause other problems. By lowering the rearend 1" how much will that change the pinion angle? Any other problems I may encounter?
Old Dec 9, 2007 | 06:55 AM
  #4  
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Boss919
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Joined: Aug 2006
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From: Michigan
Default RE: Rear drop

I think you will be fine. i installed Eibach Pro's and with 1.25 drop the pinion angle adjustment was minimal. If you are unsure just by a magnetic angle finder gauge and check it.
Old Dec 9, 2007 | 09:41 AM
  #5  
ziperhead's Avatar
ziperhead
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Joined: Oct 2006
Posts: 264
From: Upstate New York
Default RE: Rear drop

I lowered the rear with Roush and my car looks great but rides somewhat bouncy although not unbearable. Not real sure of the center was off before or after the springs were installed but the car is off 1/2 inch. I plan on installing a adjustable panhard bar to correct
Old Dec 9, 2007 | 01:33 PM
  #6  
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Stoenr
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Joined: May 2005
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From: S.burbs Chicago
Default RE: Rear drop

ORIGINAL: Aziraphale

Technically, no, nothing else is required. Many people like to replace the springs, do lower control arm relocation brackets, new lower control arms to adjust the pinion angle, etc. If you're just going for the look and not maximum traction, just lower the rear with the springs and move on with life. If you're building a drag car, replace the rest.
Well said, I would have to agree.

I had the rears only installed for a year. Then put some adj LCA's and adj panhard because I came across a good deal.
Old Dec 10, 2007 | 12:38 AM
  #7  
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GT Bob
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Joined: Apr 2007
Posts: 763
From: Pa
Default RE: Rear drop

Just installed these not too long ago.Pinion angle was within limits and my center was off by slightly more than 1/8", tho a the start, it was off by an 1/8" the other way..
Old Dec 11, 2007 | 11:58 AM
  #8  
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smythge
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From: WI
Default RE: Rear drop

Sounds good, I just ordered the rear springs, I'll check the pinion angle before and after and report back.
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