I am putting a 6 in fabtech lift on my truck and got the 5 in blocks. My question is can you install the 5 inch block with the ubolts that came with the lift? I know the ubolts was for the 4 in blocks but am unsure if they are long enough for the 5's.
Thanks

 

It may not be much help to you, but on my Titan, the U-bolts I got from Fabtech were probably long enough for 7" blocks, even though I only used 4" ones. I had to cut off the excess, and it was a good two inches off of each side of the u-bolt. Hope that helps.

 

I just put the 6" pro comp on mine, and it was missing the blocks for the rear, so we put on a 5inch block. I needed new u bolts.. the guy that installed it took care of getting them for me though, so I don't know where he got them from..