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Leaf springs and shackles

660 Views 2 Replies 3 Participants Last post by  Gen210
If I put a set of leaf spring shackles on the front part of the leaf springs along with the one's that are on the rear of the leaf springs how can I keep the rear end center of the rear wheel well and it not be able to shift front to back while in use ? Because I needed to replace the rear end in my 2003 GMC Sonoma SLS 4.3 V6 Vortec crew cab 4x4 and while jacking it up I noticed both ends of the leaf spring on the passenger side were completely broken off , so now I have to have leaf springs ! So I have a 2000 Chevy Blazer 4x4 4.3 V6 Vortec with the exact rear differential I need for my GMC , so I decided to just drop both rear ends at the leaf springs and swap them out , once I got the rear end from the Blazer installed in my truck I realized the leaf springs from the Blazer are 1 1/2" shorter than the ones from my truck , so it's not center and the tires are only 1/2" from touching the fenders due to it being shifted forward , how can I fix this problem and keep what I've got without having to buy and replace the leaf springs ? Any help or suggestions would be greatly appreciated because I'm getting very frustrated with this thing every single time I fix something on it or replace things that are considered every 3-4 yrs maintenance or replacing something else happens , I would do away with it but it's a good little truck and it's all I've got that is all mine lol thanks !
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So, you have shackles at BOTH ends of your leaf springs? That isn't going to work. You need to remove the ones at the front of the springs and solid mount them to the spring hangers.

As far as the the Blazer springs being too short, the "fix" is to replace them with the correct springs. There are adjustable spring perches and zero rate add-a-leafs that can move your axle back and forth a small amount, but you really need to start with the correct parts.
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