C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Lowered C4 owners step inside .........

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Old Apr 6, 2006 | 10:15 AM
  #1  
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Default Lowered C4 owners step inside .........

I am finally putting back together the front end of the car now that the rear is done and have installed the lowering wedges on the front spring. My questions is: Who has/has not removed the 1/4 inch thick aluminum spacer ( 1 inch wide by approx 5 inches long ) that sits up against the frame? Second part of the question is: How much did your front end drop? I am unsure whether to put the spacer plate back in and it was a real PITA to do this front end job and really dont want to have to do it again. Thanks all in advance.
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Old Apr 6, 2006 | 12:21 PM
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I'll chime in but I think the front spring is different depending if you have a coupe, convertible or sport suspension.

I have a 93 40th convertible. I added the lowering wedges and cut off one of the spacers at the end of both sides of the spring (it had two 1/4" spacers at the end). I then bolted everything back up and it still didn't sit low enough. I then removed everything again to get the 1/4" sacer you are talking about out. I havent't driven the car around but there's enough for 2 fingers between fender and tire. I hope it settles a little bit more.
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Old Apr 6, 2006 | 12:39 PM
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Originally Posted by sonomacrew01
I'll chime in but I think the front spring is different depending if you have a coupe, convertible or sport suspension.

I have a 93 40th convertible. I added the lowering wedges and cut off one of the spacers at the end of both sides of the spring (it had two 1/4" spacers at the end). I then bolted everything back up and it still didn't sit low enough. I then removed everything again to get the 1/4" sacer you are talking about out. I havent't driven the car around but there's enough for 2 fingers between fender and tire. I hope it settles a little bit more.
Thanks, I have a coupe with the FX3 suspension but not sure which springs I have. I dont ahve a build sheet unfortunetely. The sway bars were the small ones ( 26mm fr and 24mm rr ). Anyway, I didnt notice any spacers at each end of the spring only at the two mid point mounting areas. I take it there are others at the lower control arms? I dont remember seeing any, thats funny.
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Old Apr 6, 2006 | 12:41 PM
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on the bottom side of the spring near the ends you should see a 3 letter code. find the code and you can find out what spring # you have.
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Old Apr 6, 2006 | 02:31 PM
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Originally Posted by Hairmetal_still_rox!
I am finally putting back together the front end of the car now that the rear is done and have installed the lowering wedges on the front spring. My questions is: Who has/has not removed the 1/4 inch thick aluminum spacer ( 1 inch wide by approx 5 inches long ) that sits up against the frame? Second part of the question is: How much did your front end drop? I am unsure whether to put the spacer plate back in and it was a real PITA to do this front end job and really dont want to have to do it again. Thanks all in advance.
If you are talking about the spacers im thinkin about that are originally on top of the spring, I took them and put them back on underneath it. Thats what the instructions I got said to do.
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Old Apr 6, 2006 | 05:44 PM
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Was it really a PITA? I'm thinking about getting a lowering kit for my '88 'vert (Z-52 suspension) but wasn't sure how much of a pain it was going to be and whether any special tools were required. How long did it take? Don't say any idiot can do it - I've learned I'm not just any idiot when it comes to things mechanical - I'm an extra special idiot

Lucky for me my son-in-law is a car guy with actual skills!

Seriously - how much time and what kinds of tools are needed for this job. Also, has anyone used the lowering kit for sale in the CF Store?

Thanks
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Old Apr 6, 2006 | 06:15 PM
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Originally Posted by rstackjd
Was it really a PITA? I'm thinking about getting a lowering kit for my '88 'vert (Z-52 suspension) but wasn't sure how much of a pain it was going to be and whether any special tools were required. How long did it take? Don't say any idiot can do it - I've learned I'm not just any idiot when it comes to things mechanical - I'm an extra special idiot

Lucky for me my son-in-law is a car guy with actual skills!

Seriously - how much time and what kinds of tools are needed for this job. Also, has anyone used the lowering kit for sale in the CF Store?

Thanks
http://webpages.charter.net/khasting.../lowering.html
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Old Apr 6, 2006 | 06:19 PM
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Beautiful! Thanks
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Old Apr 7, 2006 | 01:26 AM
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After doing that I only dropped 5/8",, but have since learned my stock bushings were petrified wood. Since swapping bushings, the front has settled more, I'd guess about 1" total, but I haven't measured.

It looks damn low in this shot:



I removed the aluminum shims.

If you have the old style steel spring retainer brackets I highly suggest buying the newer aluminum ones and cutting them down.
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Old Apr 7, 2006 | 01:53 AM
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Old Apr 7, 2006 | 08:02 AM
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Originally Posted by CentralCoaster

If you have the old style steel spring retainer brackets I highly suggest buying the newer aluminum ones and cutting them down.
Why dont just cut the steel brackets down!??
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Old Apr 7, 2006 | 10:40 AM
  #12  
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
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You'll need a welder.
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Old Apr 7, 2006 | 03:41 PM
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Originally Posted by Stefan Nord
Why dont just cut the steel brackets down!??
Ok nevermind....I didnt remove them I cut mine down. Its been so long since I did it i forgot
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Old Apr 7, 2006 | 11:36 PM
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I have a Vert and I put the spacers on the bottom of the spring put the car together and went for a ride. The drop was not what I expected, so I took split the ball joints again and cut off half of the pads on the spring ends. Now I have a decent drop.

Mike
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