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I saw some of those posts, one from a former owner here. I totally disagree with him; a missing link is a must for SFD trucks...and not something made from angle-iron, rebar, or conduit; not rigid enough. Non-SFD trucks probably see less benefit because the subframe is no less rigid than the chassis it's directly bolted to. This is what our subframe looks like naked: Top Bottom As you can see, there's a single crossmember that only provides rigidity towards the front of the subframe. When it's bolted to the chassis without SFD, the chassis adds rigidity to the rear. When you move it away from the chassis via SFD, the rear of the subframe can flex. The missing link boxes in the subframe somewhat, reducing flex. Those damage pics are from my buddy's truck, @Jax99. His spacers are identical to mine...in fact, I had them made and I did that install several years ago, shortly after installing my own. The difference is that I've had a missing link and skid plate the whole time. He's since had the subframe replaced and the chassis repaired, with the blocks welded on in that spot and gusseted to the subframe, plus the truck now has my old missing link and skid plates. But wait, there's more...he recently struck a curb on the same side he had subframe damage. This is the difference of damage transfer when a missing link exists and the spacer is reinforced: For yours, I think you need similar gusseting. I'd say weld them to the top of the subframe if needed, but you may also need to consider a way to box in that 6"x2" tube.

So to answer my own question yes you can. They fudged up and sent me the wrong bracket along with it being for the wrong side as well. I was a little upset so I called Bob Bell Nissan in Baltimore, Maryland where my Amazon order came from and they told me they had a new person shipping orders for them and they messed up 3 orders one being mine. I asked what I needed to do about shipping the part back to them and they told me they didn't want to put me through any more inconvenience to just keep it and they would send me the right one. So needless to say it was buy one get the other side free. So in the end I was more than happy they messed up. I paid 65$. Thats high for a bracket to me, but not when you get 2 for the price of one. Sent from my SM-S737TL using Tapatalk

In all likelihood, the source of the wobble is due to the weakening of the rear subframe mount on the unibody, induced by the narrow rounded top of the spacer, the height of the spacer, and the lack of a missing link. The unibody pad at the rear is just two thin layers of formed sheet metal with some nuts welded on. Your 2" wide spacers probably only have a contact area about 1.5" wide, and with rounded edges top and bottom. Being 6" tall creates leverage, too. Lacking a missing link allows the rear horns of the subframe to flex; the subframe may even already be cracked. The rear subframe also absorbs a lot of impact from the tires hitting the road or other objects. Of all things, the missing link is perhaps the most important part. I know you've got one ordered, but you should also consider some other lateral bracing because of the height of yours and low contact area on the spacer. The welds you've applied are not sufficient. This is what is possible without a missing link on an SFD'd truck (not mine):