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As I understand it, the goal in selecting a final drive ratio/tire size is to pick the ratio/tire combination that will allow the engine to run at ~2000 rpm in OD at ~60 mph. What gear ratio is currently installed? Which tranny (and what is it's OD ratio, if you know)? What engine speed are you currently running at 60 in OD (if automatic, is it shifting into 4th gear)?
 

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i wanna see some pics of that!!
 

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Unless your running a minimum of 4.56 then I'd recommend that you regear. With 9"'s of lft I wouldn't go smaller then 37's. If you keep your current tires I'd probly go with some 4.88's. By the sounds of it your still running stock gears, probly 3.73. Trust me, your going to want to regear or you'll be sorry later.
 

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your running stock gears on 38's??? I thought the rule of thumb was don't go over 35's on stock gears. 35's would look weird though with 9 inches of lift. What gears do you have now?
 
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