Rear suspension set up.

2019 TRD Pro with stock leafs and +3 coachbuilder shackles. Going to be adding an ARE fiberglass shell and a decked drawer system. The shell and drawer will be on the truck 24/7 but the drawer will really only be loaded on specific trips not 24/7. Truck will also be towing a 21’ fiberglass bass boat a couple of times a month from 100-400 mi trips. What would be the best set up for the rear?

 

Other than losing the lift shackles and going with custom leafs you could look into RAS (active suspension). It lifts the rear about an inch and support loads, reduces squat, etc. Get the HD version. It does what they advertise. Not sure if RAS will work with lift shackles.

 

I have been meaning to contact them to see if they would work with shackles and aftermarket spring packs. That would be a good sticky for the forum.