I am negotiating to purchase a 1989 Spectrum 2000 33-foot, 15,000-pound motorhome (RV) with a 4.5:1 drive ratio. The power options offered are:
1989 460 V8 with 3 spd automatic Tranny
2002, 2003, 0r 2004 6.8L V10 Triton with a 4R100 Automatic Tranny
or either a 2002 7.3L Power Stroke Diesel with 4R100 Automatic Tranny
I have been told that all of these options will operate in the range of 2000 to 3000 RPM around 70 MPH.
I am concerned about power in the mountains of NM and CO.
Does anyone have any experience with any of these motor and transmission combinations?
What is the best combination?
All advice appreciated.