are shock extenders needed for QA1's - Team Camaro Tech
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post #1 of 3 (permalink) Old Jun 23rd, 08, 07:52 AM Thread Starter
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Join Date: Oct 2004
Location: Pittsboro, NC
Posts: 124
are shock extenders needed for QA1's

bought some QA1 GMP1450-1 & converted from mono to multi leaf

shocks appear tall enough

how do i determine if the extensions are needed

68 project car
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post #2 of 3 (permalink) Old Jun 23rd, 08, 07:46 PM
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Location: California
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Re: are shock extenders needed for QA1's

I don't know if you need them, but I can tell you how to find out.
Support the rear of the car under the body so you can let the rear axle droop all the way down with the shocks unbolted at the bottom. If the shocks come close to reaching the stud you do not need them. You probably should also measure how far up your axle can travel, fully compress the shock, measure that and compare the numbers. If your shock has the 1-2 extra inches or compression (however long the shock extenders are) then you should be fine.

Do you need them even if the shocks do not reach? I do not think so, unless you plan on fully unloading the rear axle while driving. I have mono plates bolted to a multileaf housing (with miltileaf mounts) without the shock extenders and I have never worried about it. Plus, I would much rather fully extend the shock then have it fully compress (bottom out) while driving.
But that is just my opinion.
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post #3 of 3 (permalink) Old Jun 23rd, 08, 09:01 PM
David Pozzi
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Location: Central California, USA
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Re: are shock extenders needed for QA1's

You need at least 3" of shock extension past the mount with the car on it's wheels.
With stiffer than stock springs, you might get by with less, like 2 1/2" but if the shocks ever top out under hard braking, the car will spin out - terminal oversteer.

If you ever let the rear axle hang down with no shocks, keep an eye on the brake hose to diff connection. The hose is short and may be torn apart. On a second gen Camaro, it's not a problem.

Check my web page for First Gen Camaro suspension info:
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