How to shift a 7 speed freightliner

Is it a five and two? A five speed transmission coupled to a two speed rear end?
One I drove way back, you shifted the first five gears, flipped up the two speed rear and went back into fourth on the transmission (6th), then shifted up to five again (7th).

 

I always shifted with my right arm, I'm not sure what you mean. It's a straight 7, some rental trucks had those. What's the problem?
https://i.pinimg.com/originals/38/5b/02/385b0256527d9b091ab1426fd867c3ba.jpg

 

I think that is either a straight 7 or a two speed rear. That rear will have to be flipped twice on every shift.

It would be much easier to simply examine the shift plate inside your cab mounted somewhere in view and it will tell you what the pattern is.

When she starts bucking if the RPMs are too low then you found the torque RPM number.

 

They claim it's a straight 7, no splitter. This person is doing what most people who have trouble downshifting do, they are over revving the motor, and missing the "spot" for the next gear.

 

Well, that can be solved easily with the engine manual that shows the torque and hp chart with the exact RPM's for both low and high.

My spouse was a overrevver with that 13 we had in the T2000, she would grind the hell out of it while the radio lit up with posion. HEY!! 45 mph, kick it up, it's 70 out here... Sometimes Ive eased out of sleep, notched her into gear and away she went.

She turned into a torque monster once she found that RPM at which the truck will take any gear. What a ride... HAW...