toytec, 3 leafs new tsb should have 4, should toyota install 1 more for me??

I have a 07 tacoma l/b dbl cab 4x4 i took it in the dealer for the tsb rear making squeeking noise, they fixed it and I just installed a toy tec lift 3" with the rear springs, found out they just greased the pads, well now i am finding out they are fixing them with the 4 leaf springs? do i take it back and say i want the 4 leaf springs and my toytec 3" lift spring? help, also do i need to align the rear axle after i install them?
thanks all

 

Contact Toytec first and ask their advice. The 4 spring tsb should add over an inch of ride height to the rear of the truck (over the stock springs). When you add this to the 3 inches the toytec lift gives, may run into rear driveline vibration problems. Toytec sells rear axle wedges that supposedly help with the rear driveline vibration problem. The rear driveline vibration seems to be hit or miss. Some people have posted here with problems, other have posted with no problems. I am interested in what you find because I am trying to decide if I want to get the tsb done before installig add-a-leafs, or just go with deavers.

 

If you are running an AAL, I doubt Toyota will do anything. If you want the TSB done properly, you are going to have to remove the AAL and then take it back in and claim that it can't carry a load. Squeaking springs will just get a shot of grease, not new springs.