Leaf spring and shackle bushings replacement... do or don't?

Hey y'all!

I have an '06 210,XXX mile tacoma 4WD DCSB with 3rd gen off road take offs front suspension and UCA and original rear leaf spring. I'm picking up my buddies' 3rd gen leaf spring (very low mileage) to replace mine as preventative maintenance and because my leaf springs are worn.

I'm wondering for those that were in my situation replaced the bushings on the shackle and on the replacement leaf spring, since according to the FSM, they aren't re-usable.

 

lol awesome! I'll give my local dealership a call. I already have the 3+1 leaf spring pack, I think the TSB replaces the 2+1 to the 3+1 spring, when I picked it up from the owner but don't see a recall done from the documentations given by prev owner.