Can someone tell me or where to find-out what the stock rear spring load capacity is? It seems that on my '02 4dr 4wd that when I put a light load in the back the springs go flat. By light load I am talking about an 80 lb bag of sand or a bad of ready-mix concrete...something like that...and the rear drops by almost 2 inches.

So I was thinking of replacing the rear springs but have no idea as to what load capacity is stock and what to go for.

Thanks for any leads or information.

 

The local spring shop that added the extra leaf to my springs told me "the extra leaf will take you from the factory 800lbs to 1000lbs" I never tried to look this up I just took his word for it!!!

 

We have saggy rears after so many years, it's normal for a blazer.
"Add-a-leaf" is an option/bandage, but if you search in here you can find some that have added/replaced the rear leafs with stronger springs & have gotten a better ride height & increased capacity.
Add-a-leaf's are meant to increase stock capacity, with weak springs you're not at stock capacity.