Dodge/Ram Diesel Tech Discussions on all generations of Cummins Diesel powered Rams plus the new Eco Diesel

How much 75/90 for front and rear diffs?

Old Jun 1, 2007 | 03:18 AM
  #1  
sallyman1's Avatar
sallyman1
Thread Starter
|
Captain
Joined: May 2007
Posts: 528
Likes: 0
From:
Default How much 75/90 for front and rear diffs?

I tries to search but cant find the litre amounts i need. i want to change oil in front and rear diffs on a 2004 ram 2500 4X4.Before I dump my oil (cover) i want to buy oil first. how much do i need? Will a 4 litre jug do both diffs or do i need 6 or 8 litres? for both?
 
Reply
Old Jun 1, 2007 | 10:44 AM
  #2  
sallyman1's Avatar
sallyman1
Thread Starter
|
Captain
Joined: May 2007
Posts: 528
Likes: 0
From:
Default RE: How much 75/90 for front and rear diffs?

am i the only that has wanted to do this? everyone else takes it to garage for diff oil changes? Id say approximately 3 litres per diff (6 in total)...am i right?
 
Reply
Old Jun 1, 2007 | 11:03 AM
  #3  
Watermelon's Avatar
Watermelon
Captain
Joined: Dec 2006
Posts: 667
Likes: 0
From:
Default RE: How much 75/90 for front and rear diffs?

I cant remember how much I used on my 04 but fill it til you can touch it with your little finger. the gaskets are reuseable so be careful with them.
 
Reply
Old Jun 1, 2007 | 11:52 AM
  #4  
Drew's Avatar
Drew
Professional
Joined: Aug 2004
Posts: 117
Likes: 1
From: 33.43.342, 84.21.602
Default RE: How much 75/90 for front and rear diffs?

it's about a full gallon for the rear and a bit over half a gallon for the front. . .you need synthetic and the best over the counter would be mobil. I'm partial to AMSoil personaly
 
Reply
Old Jun 1, 2007 | 03:23 PM
  #5  
DBLR's Avatar
DBLR
Record Breaker
Joined: May 2006
Posts: 1,497
Likes: 0
From: North Plains, Oregon
Default RE: How much 75/90 for front and rear diffs?

To do both front and rear in my 06 it used about 7.5 qts of 75/90 SVG synthetic gear oil.
 
Reply
Old Jun 2, 2007 | 01:13 AM
  #6  
sallyman1's Avatar
sallyman1
Thread Starter
|
Captain
Joined: May 2007
Posts: 528
Likes: 0
From:
Default RE: How much 75/90 for front and rear diffs?

thanks. 8 litres then huh
 
Reply
Old Jun 2, 2007 | 12:09 PM
  #7  
Drew's Avatar
Drew
Professional
Joined: Aug 2004
Posts: 117
Likes: 1
From: 33.43.342, 84.21.602
Default RE: How much 75/90 for front and rear diffs?

yea, you'll have a little bit left over. . .
 
Reply
Old Jun 3, 2007 | 03:28 AM
  #8  
sallyman1's Avatar
sallyman1
Thread Starter
|
Captain
Joined: May 2007
Posts: 528
Likes: 0
From:
Default RE: How much 75/90 for front and rear diffs?

i just picked up 8litres of amsoil severe gear 75w90 synthetic. ill put it in tommorrow. does any1 know torque specs on diff covers or just make them a bit more tighter than snug?
 
Reply
Old Jun 3, 2007 | 03:39 AM
  #9  
moconst's Avatar
moconst
Veteran
Joined: Dec 2006
Posts: 478
Likes: 0
From:
Default RE: How much 75/90 for front and rear diffs?

I was wonderin bout the torque numbers too, thinkin bout swappin out the covers
 
Reply
Old Jun 3, 2007 | 05:06 PM
  #10  
DBLR's Avatar
DBLR
Record Breaker
Joined: May 2006
Posts: 1,497
Likes: 0
From: North Plains, Oregon
Default RE: How much 75/90 for front and rear diffs?

I did not use a torque wrench, I just used good and tight setting in my hands. Oh if you tighten the bolts too much they will break off.
 
Reply

Thread Tools
Search this Thread

All times are GMT -4. The time now is 06:30 PM.