Man If I were you I'd put some miles on it first before dumping a bunch of $ on it. We have 135K on our E350 w/Quigley 4x4 and we are quite satisfied by the ride and handling. I'm sure it could be improved but never have felt the need.
Joe
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Joe
2003 EB50 7.3L PSD Q4X4
2000 Chevy Express 3500 High Top EB37 - Sold
2003 EB30 - Sold