front axles not engaging in 4 wheel drive
Took the Bronco out this weekend and could not get the front axle to engage. The manual hubs were locked and the front drive shaft spins but no movement on the front axle going forward. When shifted into reverse the 4 wheel drive worked.
Before I start ripping things apart I was wondering if anyone had any suggestions or thoughts about what could cause this. |
I'm not sure of your symptoms. Are you saying that you can spin the front driveshaft and the front axles and U-joints dont spin? Or are you sayiny that just your wheels dont spin? Easzy way to check this (with the truck off) shift tranfercase to 2WD and hubs unlocked, reanch under and turn the driveshaft by hand. You can see the u-joints by the wheels turn. Lock the wheels and try again. If the driveshaft doesnt turn, than its probubly in the tranfercase.
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Originally Posted by helirich
(Post 8870367)
I'm not sure of your symptoms. Are you saying that you can spin the front driveshaft and the front axles and U-joints don't spin? .
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If that's really the case then your front differential is broken.
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Originally Posted by andym
(Post 8870441)
If that's really the case then your front differential is broken.
there is obviously a disconnect somewhere so I guess I will just start taking it all apart and hope that a broken part falls out :) |
If you're turning the front driveshaft and the axles aren't moving then the problem is definitely in the front differential.
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with the trans in neutral, hubs unlocked:
xfer case in 2h, I can turn the front drive shaft and the passenger side front shaft turns xfer case in 4h, the front drive shaft doesn't turn xfer case in N, I can turn the front drive shaft and the passenger side front shaft turns xfer case in 4L, the front drive shaft doesn't turn. with the trans in neutral, hubs locked: xfer case in 2h, I can turn the front drive shaft and both front shaft turns xfer case in 4h, the front drive shaft doesn't turn xfer case in N, I can turn the front drive shaft and both front shaft turns xfer case in 4L, the front drive shaft doesn't turn. |
Replace your hubs. They are not working the way they should. With both front hubs locked you shouldn't be able to turn the driveshaft at all, regardless of what position the transfer case is in.
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Sounds like your transfer case is busted and both hubs are destroyed.
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Originally Posted by andym
(Post 8870665)
Replace your hubs. They are not working the way they should. With both front hubs locked you shouldn't be able to turn the driveshaft at all, regardless of what position the transfer case is in.
I was expecting the axles to turn when I had the xfer case engaged. |
Originally Posted by Poison Oil Racing
(Post 8870606)
with the trans in neutral, hubs unlocked:
xfer case in 2h, I can turn the front drive shaft and the passenger side front shaft turns xfer case in 4h, the front drive shaft doesn't turn xfer case in N, I can turn the front drive shaft and the passenger side front shaft turns xfer case in 4L, the front drive shaft doesn't turn. with the trans in neutral, hubs locked: xfer case in 2h, I can turn the front drive shaft and both front shaft turns xfer case in 4h, the front drive shaft doesn't turn xfer case in N, I can turn the front drive shaft and both front shaft turns xfer case in 4L, the front drive shaft doesn't turn.
Originally Posted by Poison Oil Racing
(Post 8870842)
I was expecting the axles to turn when I had the xfer case engaged.
Paul why do you say that his transfer case is busted too? Not sure I see where you're getting that from. |
This appears to be as simple as one locking hub problem.
The OP mentioned that the axle shaft turns, but what about the wheel or rotor? Is the front end off of the ground? |
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