lowering blocks - Team Camaro Tech
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post #1 of 5 (permalink) Old Nov 29th, 01, 08:24 AM Thread Starter
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Join Date: Sep 1999
Location: Green Forest, AR, USA
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If a person puts 1" lowering blocks on a 67-69 camaro don't you need longer u-bolts. Also doesn't the spring move downward out of the spring perch. The block does go in between the spring and perch thus moving the spring outward(down)the width of the block? If this is true, won't part of the spring(maybe the short leaf) not be in the perch at all?
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post #2 of 5 (permalink) Old Nov 29th, 01, 09:50 AM
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Join Date: Feb 2001
Location: Maine
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you are correct on all counts. Longer U-bolts needed, the spring moves farther out of the perch because the block moves the perch and axle tubes up with regards to the spring.
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post #3 of 5 (permalink) Old Nov 29th, 01, 10:49 AM
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Join Date: Apr 2001
Location: Toronto
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I asked myself the same question.. wouldn't the leaf springs if they were Multi's want to fan-out like a deck of cards?.. Heres a pic of a Nova set-up, same problem..but using mono's
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post #4 of 5 (permalink) Old Nov 29th, 01, 11:33 AM
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A multileaf spring should have at least one clamp to hold the individual leaves in line with one another. Two is better. (1 in the front, 1 in back) The tension between the leaves when you tighten the centerbolt also keeps them in line.

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post #5 of 5 (permalink) Old Nov 29th, 01, 02:39 PM
David Pozzi
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Location: Central California, USA
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If using a single leaf lower plate, reinforce it by welding metal strips crosswise on the plate.
Realize that the single leaf will only be located by the lower welded on locator, since there is no centerbolt.
The combination of a weak lower plate and welded on locator could cause slipping on a single leaf with lowering blocks.
Also, there is nothing for the pin on the top of the lowering block to poke into. It would have to be ground off and pinned in place somehow, or it would fall out!

Check my web page for First Gen Camaro suspension info:
David's Motorsports page
First Gen Suspension Page
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Chev 350 Can-Am Vintage Racer

[This message has been edited by davidpozzi (edited 11-29-2001).]
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