I'm pretty sure Chrysler has never built any lift kits - so it's got to be an aftermarket kit -so find out which one (ask them)- actually most dealers work with local 4x4 shops for discounts and customs (typically wheels/tires) you might check around and see if one of the shops will talk about it.
I hope the tech who mentioned that, has only seen the kit and not how it's installed. I'd expect something like a Daystar - I'd be really surprised if a dealer wanted to install an OTT kit and warranty it.
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2005 CRD
stuffSkeptic quod gratis asseritur, gratis negatur