This is a reason why Pop Ups aren't selling......

Um, not. Some pesky facts might help:

2016 Jayco 8SD
1,265# Dry weight
Dry hitch weight 170#
1,800# GVWR

But you can do a lot better than that with a 3,500# rated tow vehicle:
2016 Jayco 1207UD
1,870# dry
245# dry hitch wt
2,900 GVWR

My 2005 Fleetwood is nearly identical and we've pulled it nearly everywhere with a Honda minivan without ever having a breakdown or premature vehicle wear.

PATthwacker, you made a nearly identical post on another thread. Who makes this amazingly porky 8 footer you are citing?