I got shackles on and get a vibration at certain speeds. I found a place to get them, just not sure what size shim I need. I have Roush 2" drop.

Here is where I am going to get them from. http://www.stylintrucks.com/parts/pi...0114_3355.aspx

Thanks in advance

 

2° to 2.5°

Make sure they're going to work>>>>read link>>>https://www.f150online.com/forums/20...woes-long.html

 

I agree.

 

I used some shims for a Mopar from National. I threw them on the mill, machined the twin pin slot, and made them fit.

Some guy on the net will custom make steel shims to any degree but he is slow as molasses.

 

Sweet. Thanks! I think I'm going to get these instead. http://www.summitracing.com/parts/SPS-86255/

Hopefully it fixes the vib from 45-50. I'm sure it will since it wasn't there before the install

 

Did this fix your vibration problem? I had lowering shackles on my 2010 4X4 Screw and had a vibration as well. I ended up taking them off because of it. I like how it looked but it wasn't worth the vibration. I would like to put them back on but I need to know how to fix the vibration.

 

Belltech makes a 2 degree shim for the 04-10 F150s. I have em for $35 shipped