New Front Spring

[fredski53]

Ok, I got the new 10 leaf front spring, perchs and shackles installed today. My question is: how tight should the 4 U-bolts be tightened down? And, are lock washers used? I don't remember the U-bolts having lock washers. When I tighten the nuts really tight, it seems there is a big space between the bottom of the nut and the hole for the split pin. Also, when I disconnected the shock link, it seems there is no resistance in the shock arm. It moves up and down freely. Does this mean they need to be rebuilt? Thanks, Fred