Suspension and Chassis Questions about your suspension? Need chassis advice?

lowering questions

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Old Jan 17, 2004 | 05:58 PM
  #1  
89cmrodriver's Avatar
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From: chesapeake va
Car: 08 Sierra, 08 Silverado, 91 z28
Engine: 5.3, 4.3, 5.7
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lowering questions

Ok first may sound stupid, I have a extra set of springs and was thinking about cutting them so they are 1 1/2" shorter and using them as lowering springs, What is the disadvatage of doing this? Second, Do you have to have a adjustable panhard bar to have your car lowered, or does it not matter?
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Old Jan 17, 2004 | 06:39 PM
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MdFormula350's Avatar
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https://www.thirdgen.org/techbb2/sho...utting+springs

1 and 1/2 inch drop is pretty good drop so i think you would need an adjustable panhard bar to keep the rear end centered.
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Old Jan 18, 2004 | 11:37 AM
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Car: 91 RS
Engine: 305 Tbi (L03)
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Cutting springs changes the rate of the spring which can mess up your ride. You would need the shorter panhard rod. You would also need the adjustable torque arm.
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Old Jan 21, 2004 | 09:51 AM
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just get some sportline springs.
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Old Jan 21, 2004 | 11:09 AM
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hold up put the torch down

you'll think you'r riding in a tankcheck these out before you cut
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Old Jan 21, 2004 | 12:41 PM
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Do not cut the stock springs. This completely changes the physics of them and how they perform. The ride will be brutal and could cause potential safety hazzards. The only thing you really need to lower your car is an adjustable panhard rod and lower control arm relocation brackets. These two things keep your rear end back in its stock geometric location. Well your LCA's arein a bit different spot buit that is a whole other subject. You don't really need an adjustable torque arm. The problem associated with this is that if you use an aftermarket torque arm with aftermarket lower control arms your pinion angle will change and you could have potential problems with ride and trying to get everything to bolt back in. The stock torque arm will flex enough for the pinion angle to remain the same as stock and allow you to put your LCA's in without a pry bar. An aftermarket torque arm usually requires adjustable lower control arms to reduce some of that pinion angle and allow everything to line up correctly. My car is lowered with just eibach springs, LCA relocation brackets, and an adjustable panhard rod. The rear is centered and the ride and stance is awesome.
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