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I need to replace front, back differential fluid and transfer case fluid

Tiny
ZEMORZEMOR
  • MEMBER
  • 2006 DODGE RAM
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 102,000 MILES
I need to replace front, back differential fluid and transfer case fluid also.
what type of fluid those three components need? Do I need to add anti slip additive to the differentials?

Thank you
Monday, December 19th, 2016 AT 7:34 AM

7 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,465 POSTS
Front differential API GL 5, 75w-90 synthetic gear oil.
Transfer case - ATF +4 or equivalent.
Rear differential - API GL 5, 75w-90 synthetic gear oil.

Without the VIN we cannot tell if it has a Trac-Lok limited slip.
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Monday, December 19th, 2016 AT 8:12 AM
Tiny
ZEMORZEMOR
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  • 486 POSTS
VIN 1D7HU18236S615793
THE rear differential was low so I added 75w140. Is it ok to put 5w140 instead of 75w90?
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Monday, December 19th, 2016 AT 7:31 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
No you need put the correct weight oil in.
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Monday, December 19th, 2016 AT 10:27 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,465 POSTS
Going by the VIN Dodge says you don't have Trac-Lok so no additive required. But If you bought it used, verify that as you never know if that was changed at a later date.

You don't really want to mix lubes in differentials. They are under a lot of stress and mixed lubes can cause problems.
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Tuesday, December 20th, 2016 AT 5:56 AM
Tiny
ZEMORZEMOR
  • MEMBER
  • 486 POSTS
The differentials oil and transfer case never been changed. So do I need to do?
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Tuesday, December 20th, 2016 AT 7:46 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,465 POSTS
With 102,000 miles on them they are long overdue.
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Tuesday, December 20th, 2016 AT 11:14 AM
Tiny
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  • MEMBER
  • 486 POSTS
Can you please tell me the capacity and the torque spec for the differential bolts and the transfer case
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Tuesday, December 20th, 2016 AT 9:36 PM

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