Welcome Chief Mark!
Sam - Ill record the video but I don't recall our coach shifting that high (rpm), iirc I shift around 1300, maybe 1500 tops.
I'd love to be able to identify what ratios are in the trans.
Mark - I consistently see 9.9mpg at 70/72 mph...and I've never seen anything lower than low 8s. ONCE I achieved 13 running backroads (foggy night) between Atlanta & Destin...but I don't think I ever got over 55mph maybe 60 tops.
we are single rear axle similarly weighted to Sam - w/ the MBE4000 (DD13?) and the rear end is a 3.21
Am I correct in assuming all 12speeds have the same gearing?
Ours is an MO-16Z12A-A16...
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Don R.
'04 Haulmark (M42386) 42', 2 slide, 10kw -
Pictures
'04 F350 CrewCab Longbed 4x4, 50g aux tank & gear vendors dbl over