To start off my Blazer only has 47K miles on it and I seldom drive it. The other day I was looking at it and noticed it was leaning to the left. I took measurement from the top of the rear tire to the fender and found the right rear side had about 3/4 to 1" less than the left side. I installed a set of leaf spring helpers and it did not help much. Any one have any ideas? Do I need to install a shackle kit as well?

 

if your springs are sagging, you can slap everything you want on them and not fix anything. at the end of the day, they will just be lifted saggy springs.

try a new leaf or have your current leaf springs re-arched.

BUT first check your truck out. with 47k miles it's not likely you broke a body mount or anything unless you have dogged the hell out of her for 47k...
check you springs. measure on level terrain. if one is saggy go the above route. if they look even, poke around some other stuff. makes sure the springs are installed correctly after the helper, etc. pics wont hurt either

 

even though your truck has low mileage, it sure sounds like you have a broken leaf.

 

Possible... Get it checkd out, if it's not broken then check this out...

https://blazerforum.com/forum/builds-48/zuk-mod-1997-blazer-53891/

 

Thanks Guys! I will look and let you know what I find.

 

I've checked the leaf springs and they seem to be fine (not broken) however, I did find the bushings on the rear torsion bar to be worn and the right (passenger side) chassie bumper also worn. Just to be on the safe side I'll probably get a new set of Leaf springs and fix the bushings and bumper.

 

Just for easier p/n searching, that "bumper" sounds like a bump stop.