Low gear in high range

Don't shoot me, I've accidentally discovered a ghost gear. Low while in high range. Is this a bad gear to use while pulling up hill instead of going into the basement?

 

Do what you want. People do it all the time. Mostly in company trucks. However, if eaton intended it to be that way, it would be on there shift pattern. Procede with caution. Would i use that gear in my own truck. Absolutely not. I have an 18 so i dont need it anyway. Just throwing that out there lol

 

Don’t do it, I’ve been told by the transmission guru that the low gear spins way to fast in high range and chances for it exploding are high.

 

^That's right.

 

I've been using that gear for probably 5 years. I often use it when turning corners, faster and easier than flipping to low range.

 

What tranny has this supposed ‘ghost gear’?

 

And when I say I use it often I mean many times a night. I'm a local driver.

 

13 and 18 speeds.......

 

I am gathering your driving a 13 speed and thinking that there is a gear above first, There isnt

 

My truck has a 9 spd. I was taught to use that gear leaving a red light bob tail or to ease through a intersection in high range. I never went through a driving school. I have read a lot about that on this forum and decided not to do that anymore.
Find myself going back to my old habits but thanking about it. 9 speed with 3.70,s on 22.5,s. No load on take off or already rolling at an intersection. Baby footing it. Not much stress on anything that way. Never do that under load or going up hill.
You are shifting down in gears under load up a grade. The rear counter shaft bearings are small and the number of gear teeth in contact at the same time a few. That is overloading them greatly and you and asking for problems.