Let me know if your truck accelerates smoothly after installing the drop shackle. Mine had a vibration upon acceleration after installin gthe 2 inch drops. I had to put a shim kit in my leaf springs and that fixed it. The place I bought them from told me that I needed my driveshaft balanced, but I think Jegs is the place I ordered the shims and they said that I'd have problems installing shackles without shims. Just wanted to let you know.
Shackel ?
I have a question regarding the installation of some lowering shackel on my truck. The question is how did you get the bolt removed from the top of the shackel. On my truck (08 GMC Sierra)the bed has a seam that runs right above the shackle on each side, when I try to lift the rear of the spring up to remove the bolt, it hits the bottom of the bed, and I can not get the bolt out, ( like about 1/4 inch or so). I have installed shackels before and always had of room, to get the bolts out. Thanks in advance.
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