Why would you want 1 ton prings on a blazer? There is a reason why GM naver made a 3/4 ton version K5....they have too short of a wheel base to pull a load any bigger than what 1/2 ton springs can handle. I'm not saying they CAN'T pull anything heavy because I have towed a trailer heavier than the manufacturers rating a few times but I have some good towing experience and am super cautious, still not the safest for sure. I am 3/4 ton with the larger brakes in my defence though. /forums/images/graemlins/smile.gif
I don't think there would be a need for 1 ton rated rear springs hardly at all because it will ride terrible and any load heavy enough to where only 1 ton springs can handle it....is way to much for a blazer regardless of brakes, using caution, and driver experience IMHO.
I have the stock prings with a 2.5" addaleaf on my K5 and has worked well. The add a leaves increased my spring capacity enough to make a difference (it's kind of like a 5/8 ton now. /forums/images/graemlins/tongue.gif) but still ratain a decent ride.
The front is obvious for not needing a spring heavier than a 1/2 ton rating because you can't pull a gooseneck with a blazer. Maybe a 3/4 ton pack with a swapped in BBC if ride heigth is important, even then I would still prefer a 1/2ton spring because the ride would smooth out nicely with a BBC.
