I read in a earlier report that a good way to stiffen up the front end was installing load leveling springs. I have front end sag in my 99 4x4 and that's the way I'm going to correct the problem. I believe skyjacker makes a set.
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99 Dodge 4x4 Quad Diesel auto. K&N, 4" JRE, matched 275 Bosch injectors