Here is a link to chryslerminivan.net where we discussed this with some actual data. I have provided some pictures of the nivomat shocks from our 2010 SEL WITH the factory tow prep package listed under RoutanSEL on that site. I'm not sure how that package progressed with the SEL's in the later years, but I would assume it followed in line with the other vans. Was the tow prep an option for 2012? I guess in all reality, the nivomats are the only difference for the rear suspension, since they have the same cooling for the 2012 as what should be spec'd for the tow prep. Nivomats can be found on the Dodge Challenger as well, so that can expand your search for a pair of take offs if someone with a Challenger wanted to lower their car. But I guess, the drive train no matter what can still pull the max weight, just the ass end will sag on the van, thus losing weight on the front axel thus effecting the traction and braking. But possibly a weight distributing hitch could correct for that. By the time you look at the cost for the hitch and the cost of the Nivo's you'll have to weight that out. The Nivo's are close to $400---EACH. Which in the long run is worth the cost of the tow prep from the factory. In my case in 2010 we got the 4.0L V6 and the Nivo's and what ever else, but with the 3.6L VVT you basically paying more for the tow prep---that is unless they lowered the price for that option in 2011-2012. But here's the link for a good read. Any questions I can help out with just shout.
http://forum.chryslerminivan.net/sho...-duty-radiator



