Removing drive shaft for better fuel economy..

If you pull the rear driveshaft you would have to drive around with your power divider in the locked position in order to move.

 

I thought that was what I said but maybe I wasn't clear.
In any case, my biggest problem with the OP's statement was that "the rear differential doesn't do much of anything except add drag."
That couldn't be more wrong.

 

Which makes getting under a trailer that is a little too low, less stressful on the drive train.

Don't do it.

 

You’ll be just like those tandem trucks with a dead axle, it won’t take much to get you stuck. You can even get hung up in grade changes in paved parking lots.

A power divider is nothing more than a open differential, much like the one already in your drive axle. It splits the power to both drive axles. When you “lock it in” you send power to both drive axles, they are locked together.

 

Another BS thing.

Ask Eaton, they will tell you that the parasitic loses that cause fuel consumption is caused by the drag from the internal components of the axle.

 

The only thing I could think when I read this was that he wanted to make a Fred Flintstone truck and yabba dabba do it with your feet, lol.

I get that you were looking at how to improve your fuel economy, but that is not the way.

 

At my last job we had a tractor that had a single drive, but tandem wheels. The rear axle was basically just a bar to hold the wheels on. During winter a tow truck had to be called out to pull it off ice in trailer yards at least once a week. After a couple months it basically sat all winter long doing nothing. The weird thing is we also had a few single axle tractors that never had problems with sliding on the ice.

 

Dont do it , i have one truck like this for 150k miles already and there is no saving at all , but if you run through west or snow alot - you will regret big time

 

...but all trucks in Europe i believe have just one drive axle ...and they don't have any issue driving through Scandinavia

 

The best way to save fuel if that’s your goal is with your right leg

Had a friend that spent $5000 on rearends and another $1000 on HP all on a $20,000 Walmart truck

I did the math for him and he would have to run something like 5-7 years to break even
He didn’t go from 5mpg to 10
He went up like less than half a percent

There is an “ art “ to dialing in a truck