Thread Tools Display Modes
Old 03-09-2015, 06:39 PM   #1
New Member
Join Date: Aug 2008
Posts: 7
Year: 1988
Coachwork: Blue Bird
Chassis: All American RE
Engine: CAT 3208 10.4 liter 250 h
Rated Cap: 78
What fluid in the differential of a 1989 78-passenger BlueBird All-American

So, I sheared off an axle, and found a replacement, but it is sitting on a bit of an incline, with that axle downhill, so I've lost probably 3/4 of the fluid out of the diff. What fluid do I add, and should I drain it completely and put in all fresh?
I've looked around, and found a tag on the diff that's hard to read, but I can make out "Rockwell International", and the model looks like it might read R 125NX 7
BlunderBus is offline   Reply With Quote
Old 03-10-2015, 12:46 AM   #2
Bus Nut
Join Date: Oct 2011
Location: Snowflake, Arizona
Posts: 316
Year: 1996
Coachwork: Blue Bird
Chassis: All American Rear Engine
Engine: C-8.3-300 Cummins MD3060
Rated Cap: 40 Prisoners
check out this link, You probably need a GL-5 lube and the type of differential will determine the viscosity.
Dragonpop is offline   Reply With Quote
Old 03-10-2015, 09:22 AM   #3
Bus Nut
Join Date: May 2014
Location: West Ohio
Posts: 397
Year: 1984
Coachwork: Bluebird
Chassis: International 1753
Engine: 6.9 International
Rated Cap: 65
Gl-5 rated 75w140, we use Valvoline but whatever brand you feel loyal to will work. If it has limited slip or is a two speed you might have to include a friction additive in the fluid for it to work properly.
Booyah45828 is offline   Reply With Quote

axle, bluebird, differential, fluid, oil

Thread Tools
Display Modes

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 08:28 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.