AussieHJCruza
Supporting Vendor
- Joined
- Jul 8, 2013
- Threads
- 61
- Messages
- 2,626
- Location
- New South Wales, Australia
- Website
- www.completecruisers.com.au
Hello 70 series crew,
First thread in this section so be nice...as the signature line suggests, this is my first 70 series, and hoping someone can shed some light on troubleshooting a problem I'm having with no drive to front axle.
The symptom is, when I lock the hubs and shift into 4H or 4L, there is no drive to the front axle, but no grinding or anything.
So far, I have tried/verified the following:
1) Transfer is shifting and front driveshaft locks solid with engine off, 4H or 4L and in gear, so assuming transfer case is good.
2) with front axle disengaged, front shaft turns smoothly and freely so I assume bearings in the diff are good.
3) With truck on hoist, hubs locked, spinning either front wheel doesn't move the other (in the rear, the other turns in the opposite direction which I would have thought would be normal) or turn the driveshaft
4) With one wheel at a time jacked up, both hubs engaged, turning either wheel does not result in movement of the driveshaft.
This truck doesn't show signs of being used hard, however, looks like maintenance may have been a bit lacking, birf soup, knuckles leaking etc.
My assumption is that I have a broken inner axle or birf, however, I have not been able to tell which side and would prefer not to tear the front end apart until I have all required parts - I need to do a knuckle job and have a terrain tamer kit ready to go, but would like to get anything else needed beforehand if possible.
Am I
1) Missing something obvious
2) Following troubleshooting procedure that is flawed
3) Do I have 2 broken axles
4) Something else
Be glad of any assistance
First thread in this section so be nice...as the signature line suggests, this is my first 70 series, and hoping someone can shed some light on troubleshooting a problem I'm having with no drive to front axle.
The symptom is, when I lock the hubs and shift into 4H or 4L, there is no drive to the front axle, but no grinding or anything.
So far, I have tried/verified the following:
1) Transfer is shifting and front driveshaft locks solid with engine off, 4H or 4L and in gear, so assuming transfer case is good.
2) with front axle disengaged, front shaft turns smoothly and freely so I assume bearings in the diff are good.
3) With truck on hoist, hubs locked, spinning either front wheel doesn't move the other (in the rear, the other turns in the opposite direction which I would have thought would be normal) or turn the driveshaft
4) With one wheel at a time jacked up, both hubs engaged, turning either wheel does not result in movement of the driveshaft.
This truck doesn't show signs of being used hard, however, looks like maintenance may have been a bit lacking, birf soup, knuckles leaking etc.
My assumption is that I have a broken inner axle or birf, however, I have not been able to tell which side and would prefer not to tear the front end apart until I have all required parts - I need to do a knuckle job and have a terrain tamer kit ready to go, but would like to get anything else needed beforehand if possible.
Am I
1) Missing something obvious
2) Following troubleshooting procedure that is flawed
3) Do I have 2 broken axles
4) Something else
Be glad of any assistance
