Rear differential fluid

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Apr 1, 2009 | 08:33 PM

cjspack

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Joined: Apr 2006

Posts: 154

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From: Southwestern Ohio

Rear differential fluid

I started changing the fluid in my rear diff. ('02 F250, 7.3 4x4 Crew), and the there was a metal tag attached to it which said to use 75w140 synthetic gear oil only. Is this the norm?

Apr 1, 2009 | 08:37 PM

cparks

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Joined: Aug 2002

Posts: 537

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From: Linden USA

Yep my 05 has a tag on it and put the synthetic fluid in it when I changed to the aluminum diff cover.

Apr 1, 2009 | 10:53 PM

ReAX

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Joined: May 2006

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From: Central Florida

The service manual recommends different fluids for front and rear. 75w140 sounds right for the rear, I think the front was 75w110. If you notice a chattering noise after the change, pick up some friction modifier.

Apr 1, 2009 | 11:16 PM

wallz

Cargo Master

Joined: Jan 2008

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From: The Great White North!

Yep, they all came out of the factory with synthetic, and want synthetic back in. I went synthetic all the way under the truck.

Apr 2, 2009 | 09:41 AM

vettdvr

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Joined: Jul 2006

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Quote:

Originally Posted by cjspack

I started changing the fluid in my rear diff.
('02 F250, 7.3 4x4 Crew), and the there was a metal tag attached
to it which said to use 75w140 synthetic gear oil only.
Is this the norm?

<TABLE style="WIDTH: 767pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=1021 x:str><COLGROUP><COL style="WIDTH: 91pt; mso-width-source: userset; mso-width-alt: 4425" width=121><COL style="WIDTH: 80pt; mso-width-source: userset; mso-width-alt: 3913" width=107><COL style="WIDTH: 64pt; mso-width-source: userset; mso-width-alt: 3108" width=85><COL style="WIDTH: 72pt; mso-width-source: userset; mso-width-alt: 3510" width=96><COL style="WIDTH: 92pt; mso-width-source: userset; mso-width-alt: 4461" width=122><COL style="WIDTH: 78pt; mso-width-source: userset; mso-width-alt: 3803" width=104><COL style="WIDTH: 154pt; mso-width-source: userset; mso-width-alt: 7497" width=205><COL style="WIDTH: 136pt; mso-width-source: userset; mso-width-alt: 6619" width=181><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 91pt; HEIGHT: 12.75pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" height=17 width=121>Rear Diff</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 80pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" class=xl24 width=107>Gear oil</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 64pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" class=xl24 width=85></TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 72pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" class=xl24 width=96>8 Pint</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 92pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" width=122>F1TZ-19580-B</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 78pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" width=104></TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 154pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" width=205>

</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 136pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" width=181>

</TD></TR></TBODY></TABLE>
WSL-M2C192-A 75W140 HP Synthetic Axle Lube
Lubermatic OEM Synthetic 70w 140 States on lable meeting spec.

<TABLE style="WIDTH: 477pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=635 x:str><COLGROUP><COL style="WIDTH: 91pt; mso-width-source: userset; mso-width-alt: 4425" width=121><COL style="WIDTH: 80pt; mso-width-source: userset; mso-width-alt: 3913" width=107><COL style="WIDTH: 64pt; mso-width-source: userset; mso-width-alt: 3108" width=85><COL style="WIDTH: 72pt; mso-width-source: userset; mso-width-alt: 3510" width=96><COL style="WIDTH: 92pt; mso-width-source: userset; mso-width-alt: 4461" width=122><COL style="WIDTH: 78pt; mso-width-source: userset; mso-width-alt: 3803" width=104><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 91pt; HEIGHT: 12.75pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" height=17 width=121>Rear Diff</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 80pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" width=107>Limit Slip additive</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 64pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" class=xl24 width=85>35 ft lbs</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 72pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" class=xl24 width=96>1/2 Pint 16 oz</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 92pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" width=122>C8AZ-19B546-A</TD><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: #ece9d8; BACKGROUND-COLOR: transparent; WIDTH: 78pt; BORDER-TOP: #ece9d8; BORDER-RIGHT: #ece9d8" width=104></TD></TR></TBODY></TABLE>
EST-M2C118-A

TransX Limit Slip Tube states on label meets spec