How do i stop rear drive shaft rotating

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Joined
Jun 25, 2012
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I have two early 1980 land cruisers up on blocks for several years. Want to take them off the blocks to toe them to a new location. Was checking that the rear wheels on the cruisers rotate easily before I take them off the blocks. I find that the rear wheels on one rotates freely without the rear drive shaft rotating while the other cruiser rotates with some difficulty with its rear drive shaft rotating. Maybe if i could disengage the drive shaft from the rear wheels it would free wheel more easily. I would appreciate advice please on how I can disengage the rear driveshaft rotation from the rear wheel rotation. The gear shift lever in both cruisers is in neutral. Maybe its something simple, but I just dont know how. Please advise, thanks.
 
Hi John, thanks for your reply. Both are standard BJ40 models with no change to original specification. Regards, forrie1
 
Don't take it personally but do you understand how the differential works? When you rotate the wheel without the driveshaft moving, is the other wheel rotating in the opposite direction.?
 
forrie1, I have not had enough caffeine this morning. I just reread your post and see that you removed the driveshaft on the first truck. Do what JohnnyC said and pull the driveshaft on the second truck. If you are going to flat tow it is cheap insurance you won't blow the transfer case up. The drums are probably hanging up on the shoes on the second truck and will start to spin freely once the rust wears off from pulling it down the road.
 
Don't take it personally but do you understand how the differential works? When you rotate the wheel without the driveshaft moving, is the other wheel rotating in the opposite direction.?

Hi Steamer, thanks for your reply. Yes, on one of the cruisers, when i rotate the rear wheel the other is rotating in the opposite direction but the driveshaft is not rotating. On the other cruiser, when i rotate the rear wheel the driveshaft turns. How do i get it so that the driveshaft does not move when i turn the rear wheel? Regards.
 
Hi John Smith, thanks again for your reply. John, I did nor remove the driveshaft from either cruiser. They are both connected. On one cruiser when I spin the rear wheel the driveshaft rotates and on the other cruiser it does not rotate.
 
Hi Fast Eddy, thanks for your reply. I have not checked that there is gear oil in both. But why would this make a difference to weather the drivehaft would turn or not when the rear wheel is turned by hand? Regards.
 
Hi JohnnyC, the drive shaft has not been removed from either cruiser. As I mentioned both cruisers are on blocks and when I rotate the rear wheel by hand on one of the cruisers the driveshaft rotates and on the other cruiser the driveshaft does not rotate. I thought there may be a simple reason as to why one driveshaft rotates and the other does not. I do not really want to get involved in removing driveshafts if I can avoid it. Regards.
 
It's just how a differntial works. if both wheels turn in the same direction then the driveshaft has to turn. Try it. If you don't want the shaft to turn while towing you'll have to remove the drive shafts.
 
Hi John Smith, thanks again for your reply. John, I did nor remove the driveshaft from either cruiser. They are both connected. On one cruiser when I spin the rear wheel the driveshaft rotates and on the other cruiser it does not rotate.

Broken axle shaft on the truck the driveshaft does not spin, or ring gear has been removed. I misread your first post and thought you removed the driveshaft from one of the trucks.
 
Broken axle shaft on the truck the driveshaft does not spin, or ring gear has been removed. I misread your first post and thought you removed the driveshaft from one of the trucks.

Nothing is broken. When he rotates the wheel, the other wheel moves in the opposite direction, which is normal.
 
Put the transfercase in neutral.

Dyno
 
Nothing is broken. When he rotates the wheel, the other wheel moves in the opposite direction, which is normal.

In a open diff, yes I know that. If I am reading it correctly the driveshaft does not spin when he turns the wheel, which is not normal if the transfer case in neutral.
 
The one that turns the driveshaft may have a locker. There is absolutely no need to remove the driveshafts to tow them.

Not always true.

If there was a locker, both wheels would turn the same direction in my experience and spin the driveshaft. And in what scenario would the driveshaft not spin when you turn the wheel other than broken axle, or missing axle shaft on full floater, or something wrong with the diff? I disagree with you about not removing the driveshaft when flat towing. Many a LC transfer case has exploded while flat towing because the owner didn't remove the driveshaft.
 
And in what scenario would the driveshaft not spin when you turn the wheel

John, I think you missed what the op stated in post #8.

Yes, on one of the cruisers, when i rotate the rear wheel the other is rotating in the opposite direction but the driveshaft is not rotating.

Isn't this a normally functioning diff?
 

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