i searched this topic but didn't find much. i have a 2010 trd OR sport with a 3 leaf pack in the rear. I know of and have read the rear leaf spring tsb for previous years. my truck has a 3 leaf pack and i have heard that if you have 3 you can qualify for the tsb to get done. is that right?
i wouldnt quite say my truck has a harsh ride but i do always have about a 150 lbs of tools in my truck and the roads i drive on are warped and full of pot holes. ( i live in new england). so those of you have gotten it done, did you go from a 3 leaf and they installed a 4 leaf pack? or did they replace the 3 leaf with another 3 leaf pack with different compression ratings?