Towed out 28ft TT with a 2001 expy 5.4, eb, tow package, E rated tires. Then moved to a chevy 4 door p/u and added 24" of WB and have P rated tires.
Do tires make a diff? yes. A big one? Towig back to back you'll notice a diff, but you'll get used to P tires.
WB? again, yes, it makes a diff. The longer WB is more comfortable, ride wise. No 'porpoising' over bumps.
Both vehicles have similar tow ratings (the chevy a bit more, but not a lot), similar payload capacity. The chevy has a lot more power, but it's also got 200,000 fewer miles and a lot has changed in 12 years. today's hot mustangs have more power than anything ever built back in the muscle car days.
the biggest upgrade was GCWR. We were at or over with the expy (12,500 totay) and well under with the chevy (14,500).
Did I feel safe and in control with the expy? Yes. But I sleep better at night knowing I'm well under the limits now.
Jill & Chris, Wills (14) Evie (11) & Toby our collie (5)
2011 Grey Wolf 28BH
2013 Chevy K1500 Crew w/ Reese StraitLine Dual Cam
Nights camped 2011: 11 2012: 18 2013: 12 2014: 12 2015: 13 2016: 3