horrible snow day bad experience !!!

CDepp

Preferred method.

I hate to disagree, but I'm not sure how you calculated that. I've put a lot more in much less of a vehicle. You're talking top speed of 20mph (at most) in conditions where you'd have to apply this to keep from losing grip on inclines. And, unless you're hopping curbs every 100 ft, the chassis will do just fine with 600lbs distributed at 420 in the rear and 180 in the passenger seat flooring. (400lb/in. compression on rear stock springs, less on sport springs - offset by any drop). Stock, I have 1.25" clearance in the rear, with no spacers, meaning I can drop the entire 600lbs in the back without any damage (tucking rubber though). And, because the conditions are that bad, there's no way the car would be going fast enough to necessitate reflex speed of the springs to avoid a shock crush point.

EDIT: However, with the risk to damage (as m4a1 points out), especially for a mod'ed Z, it would be better if you just used another vehicle, public transpo, or get a rental ($10/day + gas in some areas).

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-CDepp-
2011 MB Base+S M6 | Invidia Exhaust | TommyKairaHebiBeibi | H&R Spacers 15/20 | GTR Start | 305hp/240tq