The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > All 4x4 Tech & Off Roading

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-07-2010, 05:03 PM   #1
Dieselwrencher
6>8 Plugless........
 
Dieselwrencher's Avatar
 
Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,143
Re: transfer case issue

Your humming noise sounds like it could be a ring and pinion/carrier issue in the rear diff. Or gear noise in the transfer case.
__________________
Ryan
1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


Tired of spark plugs? Check this out.
Dieselwrencher is offline   Reply With Quote
Old 12-09-2010, 10:40 AM   #2
white82
White 82
 
white82's Avatar
 
Join Date: Feb 2004
Location: Eustace, Texas
Posts: 100
Re: transfer case issue

Quote:
Originally Posted by Dieselwrencher View Post
Your humming noise sounds like it could be a ring and pinion/carrier issue in the rear diff. Or gear noise in the transfer case.
i agree about the noise.. might check .. change the fluids..
__________________
1966 GTO 455 e-heads, 1982 Chevy k10 4'' lift 33’' tires, 2008 Pontiac g6 v6
white82 is offline   Reply With Quote
Old 12-09-2010, 12:59 PM   #3
70stroker
Registered User
 
70stroker's Avatar
 
Join Date: Jan 2007
Location: pittsburg kansas
Posts: 894
Re: transfer case issue

Im gonna give it a try seeing as how i havent chaned the transfer or rear gear oil since i owned the vehicle.

What kind of oil goes in the np205 case, approximation on how much?
70stroker is offline   Reply With Quote
Old 12-09-2010, 01:27 PM   #4
Adams74Chevy
Registered User
 
Adams74Chevy's Avatar
 
Join Date: Mar 2009
Location: MD
Posts: 417
Re: transfer case issue

Quote:
Originally Posted by 70stroker View Post
Im gonna give it a try seeing as how i havent chaned the transfer or rear gear oil since i owned the vehicle.

What kind of oil goes in the np205 case, approximation on how much?
I was under the impression it was 80w90 gear oil but doing a quick search on google it seems ATF is also used by some guys...guess I just muddied the water some.

http://coloradok5.com/forums/showthread.php?t=144480
__________________
2006 Silverado Crew Cab 1500 4x4 5.3L automatic
1986 M1008 CUCV 6.2L Detroit Diesel TH400 4.56 Detroit Locker rear NP208
1973 K20 "Silverado" 350ci, HEI, TH350, NP203 with 2wd conversion, A/C, power windows,tilt wheel, dual tanks. My '73ish K20 thread My 5yo son claims it as his.
1987 V20 Custom Deluxe 350 TH400 NP208 "farm truck" getting parted out.
2016 Nissan Altima grocery getter/commuter
Adams74Chevy is offline   Reply With Quote
Old 12-09-2010, 03:16 PM   #5
Redcap
Registered User
 
Join Date: May 2010
Location: Lewis County, WA
Posts: 1,523
Re: transfer case issue

Quote:
Originally Posted by Adams74Chevy View Post
I was under the impression it was 80w90 gear oil but doing a quick search on google it seems ATF is also used by some guys...guess I just muddied the water some.

http://coloradok5.com/forums/showthread.php?t=144480
80w90 or ATF both work just fine.

70stroker, keep adding until it just starts to dribble out the fill hole. That is enough.

Last edited by Redcap; 12-09-2010 at 03:45 PM.
Redcap is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:28 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com