I bought a fullsize blazer with a ranchero lift already on it. Now I am wondering how can one tell how much it is lifted? It currently has 33/12.5/15s mud tires on it and it looks like I could get 35s under it, not that I really want to. I know its all suspension and no body. This thing has some pretty good body roll going on with it.

 

Who can guess without a pic?

 

3" minimum for 33s. Even then, depending on rim backspacing you may have to trim.

Are there any PNs on the springs that you can use to determine the kit that was installed?

 

Good call that might help, I went and snapped two but it is starting to rain. Sorry about that sideways one I cant flip it around on here. I did realize the front torsion bars are cranked up all the way, so that could be why it rides like crap currently.

 

Looks like a 5" suspension lift.

 

Where would one find some part numbers on the kit to look up? It bugs me that I don't really know what I have here.

 

Did you look on some of the suspension parts for a company name? Most of those keys and lift block kits can be found easily. Even on ebay.

 

Its Def a rancho lift kit. Its stamped on the brackets and most of it is red. I looked at their website and on Ebay but couldn't find one that looked close to it.

 

It looks to me like its a rancho 4" suspension lift. I have a 1989 K5 with a rough country 4 inch lift with 35/12.5/15 BFG A/T KO tires. If i am wrong the choices are this: 4 or 6 inch lift, 4 inch with a "add a spring" bringing it to 5 inches of lift. I fit 35s easy on mine. Yes i trimmed my fenders some, but hindsite it was not necessary. Hope this helps.

-Juggernaut135