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SVT Shelby GT500
Lowering the rear end on a stock height 2010 SVT none PP
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<blockquote data-quote="XP900" data-source="post: 16578685" data-attributes="member: 199546"><p>I have to see if my Shelby stock shocks in the rear are oil based or gas based. I am not changing the front height so everything in the front should be okay.</p><p></p><p>With old oil shocks you could pull or push on the shock and the shock basically remained in that last position with no internal loading in the shock.</p><p></p><p>With gas shocks I once had they tend to return to their neutral position and the gas pressure inside is minimized. If my stock Shelby shocks are like those then I will have an issue probably because the shocks are designed knowing the normal position the piston will be at during normal resting. By lowering my rear I now changed the shocks piston and it is no longer at its normal rest spot. I think internally I will be creating additional gas pressures that are always pushing against the seals. In addition the piston may now travel more in one direction than it normally would creating even higher internal gas pressures than it normally would. I think this will cause premature wear and early seal failures. I see where some kits have you adjust their gas shocks at the new normal car height level to probably try and minimize the internal gas pressures at the new height. I am only guessing this is how they work and why they perform this step so I need to research it and probably order gas shocks that I can manually adjust. And by adjusting I am not referring to the hardness or firmness some have on the top of the shocks, I mean adjusting the shock so it is at rest with the car at its resting height.</p></blockquote><p></p>
[QUOTE="XP900, post: 16578685, member: 199546"] I have to see if my Shelby stock shocks in the rear are oil based or gas based. I am not changing the front height so everything in the front should be okay. With old oil shocks you could pull or push on the shock and the shock basically remained in that last position with no internal loading in the shock. With gas shocks I once had they tend to return to their neutral position and the gas pressure inside is minimized. If my stock Shelby shocks are like those then I will have an issue probably because the shocks are designed knowing the normal position the piston will be at during normal resting. By lowering my rear I now changed the shocks piston and it is no longer at its normal rest spot. I think internally I will be creating additional gas pressures that are always pushing against the seals. In addition the piston may now travel more in one direction than it normally would creating even higher internal gas pressures than it normally would. I think this will cause premature wear and early seal failures. I see where some kits have you adjust their gas shocks at the new normal car height level to probably try and minimize the internal gas pressures at the new height. I am only guessing this is how they work and why they perform this step so I need to research it and probably order gas shocks that I can manually adjust. And by adjusting I am not referring to the hardness or firmness some have on the top of the shocks, I mean adjusting the shock so it is at rest with the car at its resting height. [/QUOTE]
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SVT Shelby GT500
Lowering the rear end on a stock height 2010 SVT none PP
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