Rear end feels loose

Ok so I need some help/advice. I've got a 2012 Tacoma 4wd, I installed a 6" lift in the front and 4" in the rear. I'm running 20x12 rims with 33x12.5 nitto at. It feel like the rear end is loose or kinda walking like side to side. What will help fix it?

 

1st thing, are the u bolts properly torqued? And is the axle lined up correctly?
Up next, it could be due to the blocks. You could get a set of 4" lifting leaf springs or traction bars to keep the axle where it's supposed to be.

 

@tcBob

 

Title of thread reminds me of this girl I knew....

 

I would go back and make sure everything is tight. Hit that shit with an impact till it stops.

 

I think I knew her before you. Wasn't bad, a little snug for my liking though.

 

4" in rear, traction bars might be the cure.

 

Mexican food?