No power to rear wheels when not in diff lock?

[pelega]

If I'm actually in Diff lock, meaning to the left hi or lo, I get power to both front and rear...when not in diff lock, to the right hi or lo, I get only power to the front wheels. What is wrong?

 

[joey]

What year disco? And how are you testing?

Keep in mind that the Discovery is all wheel drive with 3 open diff's, so basically all 4 wheels get power all the time, and the tire the spin first gets 100% of the power unless you either apply the brakes or you have the diff lock engaged.

 

[pelega]

I understand these things...I have the front drive shaft off because of a bad vibration...im in the process of changing the u joints. When I put it in drive there is no power to the rear wheels but I do have power to the front....when I lock the differencial I have power to rear as well.

 

[pelega]

oops...'98 4.0 automatic

 

[Va_Disco]

With the front shaft off you will need the diff locked to get power to the rear wheels. With out the diff locked your power goes to the path of least resistance, witch would be the front output shaft off the diff. With the diff locked you send 50% of the power forward and %50 to the rear.

 

[pelega]

Duh!...makes sense...I was under the impression that it was a limited slip thing from side to side both front a rear...I hope it's just the u joints making the vibration than...I will take it for a spin with the diff locked and see if it does the same thing.
thanks

 

[Va_Disco]

Just drive nice on your test drive, and any other driving you do with the front shaft removed. Our rovers are designed to be 4x4 all the time and when you take the front shaft out of the picture that means the rear will be doing twice the work. So just keep that in mind.

 

[mcleoddude]

Fellas right take some caution when driving without a front prop shaft. Had mine off for about a week and front end seems unstable (loose, light, etc.) almost if you are traveling speeds over 45mph. I hit a rut on the highway and scared the crap out of me thought i was gonna lose control.