Looking at a 260 hp 5.9 Cummins in a super clean 2001 Expedition 34N that weighs 18400 dry. How much of a slug is this setup and will the transmission hold up to more power?
I once owned a 98' Newmar with a 5.9 and a whopping 210 HP, The coach did just fine. If I had 260 HP back then with my 4 speed Allison, I would hace been one happy camper.