Rear TSB question

I have a 2011 DC sr5 preruuner and want to get the rear tsb done. I was reading treads about it and some have said if its not a trd your shocks will be upgraded others said they wont. Does anyone with a 2011 that has had it done know? Also when I call to set this up what do I say? Rear tsb now!!! or what haha

 

if you dont need it, dont bother. there is no point in getting it if you dont haul anything heavy

 

If you want a more stable ride, go for it. Had mine done about a month after purchase. Less body roll, slight lift up to about 2 inches initially. Truck rides firmer, not harsher.
Also, if you put anything in the back of your truck and you don't have the TSB the headlights are always pissing someone off. I like my ride.

 

I had it done to my 2011 ac, non trd. they did not replace the shocks.