Chain drive t-case ?'s

Grommit327 · May 9, 2007

So I have been getting a clacking noise from my drivetrain lately and it has been puzzling the **** outta me. It happens when the truck has been sitting for a few hours...I take off and go a few hundred yards then when I decelerate something starts clacking. Turns out it is my square front d-shaft turning and making the noise. It only does it for a mile or so then once everything gets warmed up it stops turning. Now what in the hell could be causing my front output to turn with enough force to turn the driveline/axleshafts. I don't know enough about these cases to be able to guess what it is...any ideas out there???

dove'd85 · May 9, 2007

you got your hubs locked in?.. you in 4H?:haha:

Grommit327 · May 9, 2007

dove'd85 said:
you got your hubs locked in?.. you in 4H?:haha:

I shoulda known those two questions would pop up...so...

:fawkdancesmiley: :bananadance: :fawkdancesmiley: :bananadance:

GRNTACO · May 9, 2007

Grommit327 said:
I shoulda known those two questions would pop up...so...

:fawkdancesmiley: :bananadance: :fawkdancesmiley: :bananadance:

A hub could be sticking?

Glenn · May 9, 2007

It's probably just old lube sticking things together until it's warmed up enough to flow easily.

Grommit327 · May 9, 2007

Glenn said:
It's probably just old lube sticking things together until it's warmed up enough to flow easily.

It's got synthetic in there within the last year but who knows. I know know it's on the t-case end and not the hubs because when I pull the d-line I can hear my front output bearings making some not so good noises at higher speeds. Not sure if that would have anything to do with it spinning though

Glenn · May 9, 2007

Well, the same thing happens to my truck, although it's not a chain drive. It's got the gear drive case. If I haven't driven it far enough to warm up the gears, the gears will usually clash a little bit when going from 4H to 4L while stopped.

It has full synthetic in both the transmission (manual) and the transfer case.

Not Jobless · May 10, 2007

I'll just bite my tongue on this thread...

Toyota...

...square d-shaft

...is their a snorkel on it :corn:

Glenn · May 10, 2007

Bite a little harder.:flipoff:

Grommit327 · May 10, 2007

Jobless said:
I'll just bite my tongue on this thread...

Toyota...

...square d-shaft

...is their a snorkel on it :corn:

Damn Toyota haters anyways. :flipoff: The d-shaft was a cheat to get on the road last year after the swap. Just have been too cheap to buy a real one. I'm thinkin bout a pvc snorkel with some expanded metal at the top as a screen...whatcha think? :fawkdancesmiley:

Pook · May 10, 2007

My gear driven case does it until its warmed up.

Its the drag from the gear oil. That stuff is thick when cold.

GRNTACO · May 10, 2007

Grommit327 said:
I'm thinkin bout a pvc snorkel with some expanded metal at the top as a screen...whatcha think? :fawkdancesmiley:

Nope, cut a piece of window screen out.:awesomework: :flipoff:

notstock · May 10, 2007

Does your tuck still have the IFS? If so, does it have the ADD front axle since you have the chain drive case?

Grommit327 · May 10, 2007

notstock said:
Does your tuck still have the IFS? If so, does it have the ADD front axle since you have the chain drive case?

HAHAHAHAHAHAHAHAHAHA

ADD went out the window a while ago...along with the front suspension...hence the square front d-shaft

notstock · May 10, 2007

Well it isn't the ADD axle making the driveline rotate then:haha:

Grommit327 · May 10, 2007

Since my front ouput bearings are pretty noisy anyway I'm going to do a teardown and see what I can see. It may be that it just needs some new fluid. Yet another weekend project. If it wasn't drivers drop I'd just get another gear drive case to throw behind the crawl box.

Pook · May 11, 2007

you need Lefty from inchworm. http://www.inchwormgear.com/store/index.php?cPath=21_38

Grommit327 · May 11, 2007

Pook said:
you need Lefty from inchworm. http://www.inchwormgear.com/store/index.php?cPath=21_38

Hahaha...awesome idea from Jim. Think it's a little on the steep side pricewise though. I would rather go passenger drop 60 in the front with a normal geardrive case.

On a side note about things turning when they're not supposed to...I started my truck this morning and let out the clutch with it in neutral and the truck jumped forward a few feet...must be time to buy a jeep :haha: