Video of the clunk looking at the forward (diff side) ujoint of the front driveshaft
You can hear the clunk at 18 seconds, and again at 24.
You can hear the clunk at 18 seconds, and again at 24.
Builds 1990 LJ78 in Montana (10 Viewers)
- Thread starter AirheadNut
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
video of the clunk looking at the rear (tc side) ujoint on the front driveshaft. You can hear the clunk repeatedly after 37 seconds in
- Thread starter
- #323
Is this with the hubs locked or unlocked? Sounds like something is skipping teeth to me, maybe the shift sleeve isn't engaging fully and is skipping under load?
This happens in both 4h and 4l, when the hublocks are engaged.
| TC | hublocks | clunk |
| 4h | locked | yes |
| 4l | locked | yes |
| 2wd | locked | no |
| 4h | unlocked | no |
| 4l | unlocked | no |
| 2wd | unlocked | no |
I've been thinking about the post you made here: seeking vacuum transfer case info - https://forum.ih8mud.com/threads/seeking-vacuum-transfer-case-info.1312666/post-14966752
What happens when the switches on the TC to detect low/neutral go bad?
What happens when the switches on the TC to detect low/neutral go bad?
- Thread starter
- #326
With hubs locked and transfer case in 4WD you'll experience drivetrain binding on hard surfaces like pavement. Can be hard on components, but shouldn't cause immediate damage, especially not when driving straight. Have you been able to confirm the front drive sleeve fully engages?
The switches on the transfer should only be there for the neutral and 4wd indicator lights at this point.
The switches on the transfer should only be there for the neutral and 4wd indicator lights at this point.
I've had a complete front-end rebuild at this point, but I'm not familiar with the front-drive sleeve. Is that the part that engages the TC input shaft to the trans? We did seals and bearings in the TC but not the input-shaft. Is there a way for me to test it without tearing it all apart?
I'll also note that playing around with the shifter from 4h to 4l changes the clunk.. sometimes making it more frequent, other times making it less frequent
oh do you mean the free-wheeling hub in the hublocks?
