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

Simple lowering ?

Old Jun 14, 2008 | 02:01 PM
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Default Simple lowering ?

I had my C4 lowered a couple moths ago . I just noticed that the pass side rear is 1/2 inch higher then the drivers side rear. Do I just turn the bottom bolt (pass side rear) counter-clickwise a few turns?
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Old Jun 14, 2008 | 02:26 PM
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Basically. You actually want to turn the nut counter-clockwise. Put a wrench on the top of the bolt to keep it from turning, and measure and mark on the bottom of the bolt where you want to stop. Also, I don't know about your nuts, but mine are Nyloc (nylon locking), so they are REALLY hard to back off. It took a lot of grunt.
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Old Jun 14, 2008 | 04:23 PM
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I have about 4 threads to go till I reach bottom. Both rears are on the 5 thread from the bottom. I will try to turn the bolt 2 threads and see what I get. I only need 1/2 inch lowering.
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Old Jun 14, 2008 | 04:42 PM
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Originally Posted by VETTEHIGH
I have about 4 threads to go till I reach bottom. Both rears are on the 5 thread from the bottom. I will try to turn the bolt 2 threads and see what I get. I only need 1/2 inch lowering.
I have urethane bushings, and I ended up cutting the upper bushings for the bolts in half. As they are urethane, deflection etc is no concern, but it gave me the extra threads I needed, and I already have 11 inch bolts. Mine is lowered a little more than most, so I needed etc threads to adjust that STANDARD C4 annoying one side is higher/lower than the other issue.
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Old Jun 14, 2008 | 06:10 PM
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I did the best I could just now turning (lowering) the nut. I'm at the end of the bolt, so there is no more lowering that I can do. I did not want to go to low. I measured from a certain point, point A to point B. I'm at 2.5 1/2 inches (that's 2.5 and one half inches) on one side of the rear and 2.7 inches on the other. I'm off .1 1/2 (that's one tenth and one half inches) CLOSE ENOUGH for me

Last edited by VETTEHIGH; Jun 15, 2008 at 04:52 PM.
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