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Old Sep 27, 2006 | 04:49 PM
  #1  
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I'm new to the C3 world and am considering a couple of changes to my stock suspension. Here are the mods I'm considering:

1) Thicker swaybars (front and rear)
2) New TRW composite spring in the back
3) New rear shocks

The (probably dumb) questions I have here are:

a) Are these mods that I can fairly easily do myself?
b) Will the new spring and shocks in the rear require a reallignment?

Thanks for the help!
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Old Sep 27, 2006 | 04:53 PM
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a) yes.
b) yes.

get a manual--Haynes is okay, but not great--and also the Van Steel video. i did it all in my driveway.
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Old Sep 27, 2006 | 05:32 PM
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spring and shocks are easy. Be careful taking the bolts out of the end of the stock spring. I had my '72 on jack stands and used a small floor jack to hold end of the spring up while I took out the bolt. I lowered the spring down as far as I could and figured it was pretty much down all the way. I had to pull the jack out as there was a little pressure from the spring still on it. WHAM - it took a piece of concrete out when it hit the floor. Morale to the story is make sure you have the rear end up pretty high....

I was going to go with larger sway bars but a very knowledgeable friend (former Corvette engineer) advised against it unless I was going to use it on the track. He said Chevrolet paid engineers a lot of money to come up with the suspension / sway bars. Albeit it was 30+ years ago. He said you can get into some trouble if you throw parts on there and not know what you are doing. I trust him so I took his advice. I don't race my Vette so the stock sway bars are good with me.

I put on a fiberglass spring and love it. It is so much smoother. Won't pass judging if you are into NCRS, etc.

Good luck.
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Old Sep 27, 2006 | 05:33 PM
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May I also add something that you may not have thought about? Make sure you purchase the items as a complete package in which each part is designed to work with all the others. There's no better way to screw up the handling of your car than to assemble a pieces-parts suspension "upgrade" with spring rates, shock damping, and roll bar thickness which just plain doesn't work well together.
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Old Sep 27, 2006 | 06:06 PM
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Vette Brakes sells the complete kit for what you want to do. All matched components, no guesswork

BTW where is Poway? I've never heard of it
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Old Sep 29, 2006 | 05:06 PM
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Originally Posted by 682XLR8
Vette Brakes sells the complete kit for what you want to do. All matched components, no guesswork

BTW where is Poway? I've never heard of it
Thanks for all of the help!

Poway is about 20 miles north east of San Diego off of the I-15. It's just south of Rancho Bernardo and right next to MCAS Miramar (formerly NAS Miramar - Topgun). It's a great place with many waving vette owners...

Thanks again!



Steve
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Old Sep 29, 2006 | 05:23 PM
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Everything I've seen indicates that the VB&P composite springs are far superior to the TRW style.
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Old Sep 29, 2006 | 06:44 PM
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On a scale of 1 to 10, with 1 being changing floor mats (see C6 General) and 10 being changing out the trailing arms, I'd say this is about a 3...
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Old Sep 29, 2006 | 10:12 PM
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Where's a differential removal and rebuild? 72?
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Old Sep 30, 2006 | 02:17 AM
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Originally Posted by I'm Batman
Where's a differential removal and rebuild? 72?
If you have to use a sawzall to remove the diff cover under the car and in a snowstorm, it's still only a 9...

Frozen trailing arm removal involves inventing new swear words...
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Old Sep 30, 2006 | 05:05 AM
  #11  
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Originally Posted by Z-man
If you have to use a sawzall to remove the diff cover under the car and in a snowstorm, it's still only a 9...

Frozen trailing arm removal involves inventing new swear words...
Mine came out pretty easily - three 8" DeWalt 14 TPI sawzall blades and 30 minutes, it was done. Prying the shims out before that wasn't much fun, though.
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Old Oct 3, 2006 | 10:09 AM
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Originally Posted by DropTopBigBlock
get a manual--Haynes is okay, but not great--
Great advice ........ although I'd put the Haynes Corvette manual well below OK in a lot of areas (it's trying to cover so many models/variations in so few pages). Best manual I've found, by far, is the shop manual, as sold by Ecklers, etc. Not cheap, but worth every penny/cent if you aim to work on the car yourself.
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Old Oct 3, 2006 | 11:27 AM
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eBay is a great place to find the factory manuals.
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