I did some homework. turns out I have the zw7 option on my Suburban as well. I can verify that these are NOT the self leveling shocks. There was a regular suspension, then the ZW7 Premium Ride suspension, and the the G69 Premium Autoride Suspension (self-leveling). So replacing your rear shocks and springs wont be quite as expensive as you thought!
Ok, I guess we are both right...but I was only part right. After reading the page on your link it makes sense now (and explains a lot). I know my shocks have no air or any other type of lines or hoses going to them, so I assumed they were not self leveling. According to that webpage, everything is self contained inside the shock. I guess that explain why the shocks are dam huge. It also explains a lot about when I towed a blazer from New Orleans to Shreveport. When I first hooked up to the car transport trailer, the back of my Suburban sqatted down really bad. But after driving about a mile or two, I stopped for gas before getting on the highway and noticed that it had leveled out (lifted back up almost 3 inches). Tobias, I beleive that you wont need any air springs to tow your boat if you have these shocks on there. I know I've towed that blazer on the tandem axle trailer well over 300 miles (without a weight dist hitch) and after it leveled out it was perfectly fine. The guy at U-haul said those trailers weigh about 1800-2000 lbs empty, and I know that blazer is at least 4000-4500lbs. My truck is reated to tow 6800lbs and I'm sure yours should be the same. Now I'm dreading when I have to replace my shocks.......I did some homework. turns out I have the zw7 option on my Suburban as well. I can verify that these are NOT the self leveling shocks. There was a regular suspension, then the ZW7 Premium Ride suspension, and the the G69 Premium Autoride Suspension (self-leveling). So replacing your rear shocks and springs wont be quite as expensive as you thought!
This is correct, they are not the autoride shocks but they are self-leveling. The ZW7 option uses a Nivomat shock and they do run around $300-$400 each.
Here's a link to a little info about them: http://www.brakeandfrontend.com/Art...selfleveling_monotube_ride_control_units.aspx
But I wanna level it.
I measured again but this time in a bit more level lot and it's a full 2" higher in the rear and I hate it.
Scott, is yours factory ride height or have you leveled it? It looks fairly level but so does mine in pics at that angle.
