So the more gears you can keep the RPM per gear within 300 to 400?
That would lead me to assume that given most conversions are a lot lighter than an OTR truck/trailer you can get away with fewer gears because you don't work the motor nearly as hard and can wider the "optimal" range.
For me, I'm not wildly interested in shifting, hence a preference towards the Freedomline tranny (12 and 16 speed).
Also, for me my trailer only weighs about 8000 pounds so my GCW won't most likely exceed 40K.
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