<div class='quotetop'>QUOTE(Justblazin &#064; May 23 2007, 10&#58;23 PM) [snapback]94495[/snapback]</div>
I am doing the lq9/4l80e swap.
[/b]
i have a 4/8 and have hauled an engine in my bed with no problems. although its only approx 530 lbs, still had no problem. the flip kit doesnt alter the spring rates of your factory suspension. you should be fine.