I have a 07 2WD Supercrew with the trailering package. Im not sure if it is just with trucks with the trailering package, but they have started putting 1" blocks in. I currently have the groundforce 2" shackles on it and it is still not level, so I want to take the blocks out. Will the U-bolts off of a 06 2WD work, or has anything else changed that you know of ?? Thanks

 

Since they changed the spacer from 2" to 1" I would say you should compare your rear suspension to an 07 two wheel drive truck and see what is different. Then you can determine what parts you may need.

 

If there is ~ 1" of thread available on your existing ubolts , you may be able to get by with your existing bolts.

 

He says he has a 4x2 already and it has 1" blocks.

 

Ditch the 1" blocks, the current 2wd U bolts are good.

 

Ooops, my mistake. Sorry.

 

I might just do that, It just looks kinda crappy to me with when the ubolts hang down too low

 

MX81,

Check your PMs.