Sorry if this has been covered before.
1996 GMC Sierra SLE shortbed/Ext CabI want to level the truck out and have been looking at shackles that say they can drop it 2".
There are currently shackles installed that appear to be original. Distance between upper and lower shackle bolts is 4.5 inches.
Can someone go over the procedure to install "lowering shackles" without removing the hangers, and maybe explain how the shackles work, as compared with the stock(?) ones.
Photo of Rt rear shackle below