For my 2006 Hurricane 8.1L with Allison 1000 transmission, I keep the RPMs around 3200-3600 while climbing. I will manually shift to whatever gear gets me 3200-3600 and settle in, that is my speed going up this grade. Could be 35 mph or 60 mph, depends on the grade. If I can't hold this RPM, then I manually downshift once it gets to 2200 -2500 rpms, to the next lower gear and get back to 3200-3600 RPMs. I never press the gas pedal to the floor. If the MH is slowing down on the grade at around 3/4 throttle, then I am in the wrong gear for that grade and need to be in a lower gear once the RPMs drop,
I Must be doing something correct, I have 105,000 miles with no engine or tranny problems (Knock on wood).
06 Hurricane 34FT WH W20 Chassis 8.1L 120K, Steersafe, Koni Shocks, DIY Trac Bar, Tri-Metric 2025RV Battery Monitor, 4-6V Batteries, Scan Gauge 2, Crossfires, 735W Solar Morningstar MPPT-60, KVH R5 In-Motion Sat, XM Radio, 07 Chevy Malibu Maxx Toad, Falcon 2, Brake Buddy, Escapee