the stock springs are good for 60# from what I have heard.
BTW, Ive had mine to a fully fueled 3500rpm and she sounded good
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04.5 6spd QC 4x4 4.10's line-x on the rockers, TST, smarty
10/20/07 425hp 798tq still on the stock clutch, how much longer will she last

Many Thanks to David and the guy's at James O'neal Dodge, you guy's ROCK!!!