Transfer case noise

[83kid]

Hi,
So i had my truck in 4 low pulling a buddy out last night, and it would tick/whir when i drove through the trail (Was going like 5 miles an hour or slower). I assumed it was because i wasnt just crawling along with it.
I put it in 4 high, and it would do it then. It sound kind of like a chain going around and around constant with how fast i was going.
To help describe it bettwe, it sounds not like grinding but a constant tick tick tick


I have a NP208, coming off a 700r4. Auto locking hubs, that i have manual replacements for just havent put them in


What would this be?

Thanks!

 

[bucket]

Where did it sound like the tick was coming from? Under the seats or under the front of the truck?

 

[83kid]

Right about where the shifter for the 4 wheel drive is, right around there, so im assuming its coming from the transfer case

 

[MrMarty51]

before condemning the T~Case, remove the drive shafts and check the U~Joints first.
Being just a guess here.
Block the wheels securely first though.
Do not install locking hubs, that will destroy that 208 T~Case.

 

[flyboy1100]

Chain stretch? If you roll a window down does it sound like the chain is rubbing? http://youtu.be/cBL7_b_C3r8

If so, quit using 4wd and rebuild it before you wear a hole in your case

Might be able to get by with new chain, of you need sprockets/gears, might want to look into a new used tcase

 

[marks86]

if you indeed narrow it down to your transfer case, I would start by inspecting the fluid, also pull the tail housing and check out the output bearing and bushing

 

[bucket]

before condemning the T~Case, remove the drive shafts and check the U~Joints first.
Being just a guess here.
Block the wheels securely first though.
Do not install locking hubs, that will destroy that 208 T~Case.

What do you mean? The 208 is supposed to have locking hubs.

 

[MrMarty51]

What do you mean? The 208 is supposed to have locking hubs.

Pardon Me, I was thinking the NP203.
Fuzuk, I thinking I better quit posting in the forum, making too many mistakes.

 

[bucket]

Pardon Me, I was thinking the NP203.
Fuzuk, I thinking I better quit posting in the forum, making too many mistakes.

No no, don't do that. We would all miss you

 

[83kid]

Chain stretch? If you roll a window down does it sound like the chain is rubbing? http://youtu.be/cBL7_b_C3r8

If so, quit using 4wd and rebuild it before you wear a hole in your case

Might be able to get by with new chain, of you need sprockets/gears, might want to look into a new used tcase

Kind of, thats the same kind of sound im hearing for the most part

before condemning the T~Case, remove the drive shafts and check the U~Joints first.
Being just a guess here.
Block the wheels securely first though.
Do not install locking hubs, that will destroy that 208 T~Case.

Rear u joint is newer, replaced about 2k miles ago

And, i know the hubs are certainly making noise. I put it in 4 for a minute today and driving theres lots of that sound in the video, and when i shifted back to 2H before i backed up to disengage the hubs it would have that tick noise coming from up front, definitely the hubs.

If the chains loose, how will i fix that?

 

[flyboy1100]

Buy a new chain. Hope your sprockets are good. Might as well get a rebuild kit while you are at it.

Instead of rebuilding mine, i just swapped in a 241c. But i tore it down and rebuilt it first. Had about 300 into it by the time i was done since i didn't need the chain.

Might want to check for used ones 241/208 instead of rebuilding.

 

[83kid]

Yea i'd just install a new used one.

Whats the difference between an 241 & 208?

 

[flyboy1100]

241 is essentially the update for the 208. But the only year that works of you want to keep mech speedo is 89. It has a much improved oil system and a few other smaller changes

 

[MrMarty51]

Kind of, thats the same kind of sound im hearing for the most part



Rear u joint is newer, replaced about 2k miles ago

And, i know the hubs are certainly making noise. I put it in 4 for a minute today and driving theres lots of that sound in the video, and when i shifted back to 2H before i backed up to disengage the hubs it would have that tick noise coming from up front, definitely the hubs.

If the chains loose, how will i fix that?

In behind the front hubs, there are U~Joints that can make ticking and clicking noises too.

 

[firebane]

Pardon Me, I was thinking the NP203.
Fuzuk, I thinking I better quit posting in the forum, making too many mistakes.

You can put locking hubs on a NP203. You will need to get a part time kit or leave the hubs you get in the locked position.