Just ordered the same springs. I considered waiting until I heard from you on whether it was a good move but its 80 bucks a spring and plus I don't like waiting![]()
2 big questions now is whether I will need shims or not and if the spring eye bolts are 9/16 like 52s and 56" springs. I know the newer ford springs came with metric spring eye bolts.
My plans are to run the long side forward to gain wheelbase and get a better departure angle. Hope this does not point the pinion to the ground.
The bolts were bigger, I had to grind the heads down to fit in the perch holes. I also had to drill out my shims. Idk if you will need shims or not. I welded my perches on with the pinion angle too high, so my shims are to lower it. Everything still looks great from the front. I just need to fix the shackle hangers.
I will probably look at doing a rear spring clamp, I don't like how they separate from the main leaf so much.
Copy and paste from my thread:
Got the ferd 57s today.
They actually bolted right in, keeping the axle in the exact same spot (just had to move the pin to the front perch hole, was in center).
Now I just need to address the shackle end. I think by swapping the DIY4X hangers from side to side, the offset should put me pretty darn close...

Got Droop????
These will actually use all the droop in my shock. Thats like easily 3 more inches of droop than what the 52s had. Ill have to strap it I guess.




















