The answer is always #flatbrimliftedTundra! It is known!
Attachment 507245
163 track in a 6.5ft bed. The truck definitely handles way better with the sled in than it does empty - similar to how it did when I ran a shell and bed platform. I do run airbags, usually around 20psi with the sled in, but it still does fine if I forget to fill them.
The RevArc ramp is by far the best I've used. The convex shape means I can totally just crawl up in there.
https://bosskibuilt.com/collections/...8-20-sled-ramp