BX 4x4 drive system question .......

[turkish]

What you're calling a "center differential" is known as a "power divider". Yes, it does the same job front to back as a differential does side to side, just a different name to help keep them separate in our minds I guess. Not many 4WD vehicles have power dividers. They don' t have "locked power dividers" as you suggest, they simply aren't there. Front and rear drive line are both turned the same, all the time, when 4WD is selected. This is called "full time 4 wheel drive" as opposed to "All Wheel Drive". That's why you'll always get one front and one rear wheel spinning (or three wheels spinning) but never only one wheel spinning.

You can put whatever size wheels and tires on a 4WD vehicle you care to if you engineer the difference into the transfer case.

Yes, I know what you are saying. In my attempt to explain my point, I oversimplified (and used some "technically" incorrect terms, admittedly).

So you are saying that tractors have tire size difference ratio accounted for by gears in their power divider? And it one wanted to change tire sizes, they'd need to also correct these gears, correct?

 

[tungularafishcamp]

Might be easier to just keep the ration the same by increasing/decreasing both front and back tire by the same ratio so you don't end up blowing anything up.:2cents:
Rick

 

[RoadHogg]

Yes, I know what you are saying. In my attempt to explain my point, I oversimplified (and used some "technically" incorrect terms, admittedly).

So you are saying that tractors have tire size difference ratio accounted for by gears in their power divider? And it one wanted to change tire sizes, they'd need to also correct these gears, correct?

I don't believe tractors have power dividers, that's why they are called 4 wheel drive. In that case, you must either use the manufacturer's tire sizes or change the ratios in your transfer case. The latter being almost impossible for most people in practical terms. A transfer case is not a power divider.

 

[RoadHogg]

Might be easier to just keep the ration the same by increasing/decreasing both front and back tire by the same ratio so you don't end up blowing anything up.:2cents:
Rick

IMO that is the only solution. I don't remember in this thread what the need is to change tire size but I am assuming someone needs to do it. It would take a little math but yes, if front tire diameter is 60% of rear tire diameter then that ratio would have to be maintained regardless.

 

[OrangeRidge]

Just been cutting . Front wheel spun in a hole and I came to a halt. Re-checked the rears and .....................










































........... one was spinning . Duh ! .........:ashamed: