Lowered Trucks: tech and info....
#1311
#1312
#1313
The shackles that came with the kit should have two adjustment holes, one for a 4" drop and the other for a 4-1/2" drop. Use the upper hole for a lower position (4-1/2"). I am using the MG spindle kit and the holes for the 4" drop and the truck sits level. So each truck is different. If you are already in the upper hole which drops you the most, try a shorter shackle, maybe your original shackle will get down where you want to be. How much axle travel do you now have?
#1314
ive got about 5" of travel i did have them in the upper hole at first but the bracket on the end of the leaf was rubbing on the shackle when driving and making a horrible sound so i went back to the lower hole but whats weird is it didn't move the rear end up or down at all buy switching holes!
#1315
#1318
#1320
That's the correct direction. But your shackle looks different from what I have. My upper hole is a little higher. I think I would use a grinder on the shackle to get some clearence with the spring. It is obviously very close to fitting correctly already and would only need a little grinding to get to clear properly.