Well I went ahead and installed the after market clamp on style retainers. The ones that are a u-bolt with a flat piece of steel on the other side and they just bolt around the spring pack.
The install is just as easy as you would expect, slide the u-bolt up from the bottom of the spring pack, add the flat steel, washers and tighten up the nuts. then if you are feeling froggy like i was you cut off the excess bolt.
Installing these on my truck took some extra steps to get the spring packs re aligned. I removed the tire on one side and then supported the axle with a jack stand as low as it would go. I then jacked the body up by the hitch to remove the weight from the springs (removing the tire allows you to get enough travel with jacking up the hitch to take pressure off of the springs) Then loosen the u-bolts on the axle and tap the leaves into place with your persuader of choice. Once this is done and you are satisfied, lower the truck and tighten the u-bolts torquing them to I believe 85 ft lbs. (then repeat for side two)
Once this is done the clamps go right on. I noticed my truck does have a stiffer ride now with this style of clamp, but a small price to pay for safety.
Hopefully this will help someone who needs to do this to their truck but is unsure. Definitely do it, its easy and is a safety issue.
I will try to get a picture here this weekend of the finished product to help those who may have a question about placement. I just put mine where the factory retainers were ( i could see the outline of where they had been)
Last edited by fordf150farmer; 05-18-2013 at 10:54 AM.