Tundra payload question

I have a general question that I’m sure has been asked before - just couldn’t find the topic. I have ordered a 2021 Tundra TRD Pro, coming from a Tacoma Pro. I would like to install the Decked system among with a Leer Shell. Any comments on this being too heavy or causing rear end to sag any? I have read that the Pro is not really set-up for as much weight in the bed?? Thanks in advance for any comments...

 

Vehicle Capacity Weight varies by Tundra model.

https://www.toyota.com/t3Portal/document/om-s/OM0C039U/pdf/OM0C039U.pdf

Select the Tundra model you're interested in, and go to page 538 for VCW. Find your VCW, subtract off weight of any planned modifications, and compare to your planned load. The Owner Manual had a special section on slide-in campers a few years back, but that seems to have disappeared for 2021.

 

While you answered his "subject line", his actual question is more geared to the Pro rear suspension and how it behaves/handles the weight he plans to add.

 

Yep, I didn’t do a good job with the subject line description...