rear lift block install question

[bears4x4]

I have 2 rear lift blocks off my 2000 f350, if like to install them on my 2005 f250 to give it the proper ride level. My question is do I need u bolts off a f350 to make it work , can they be used ones or should be new?

 

[DaveBen]

If the length works, the bolts will work. They are the same for both F-350 and F-250.

Dave