diff. oil

[clndesl]

im going to be installing new differential covers front and rear and was wondering what oil i will need and how much to refill. the truck only has 3000 miles on it so the oil is new is there any way to re use that oil. thanks guys.

 

[Regcabguy]

im going to be installing new differential covers front and rear and was wondering what oil i will need and how much to refill. the truck only has 3000 miles on it so the oil is new is there any way to re use that oil. thanks guys.

I had a few days left on my Amsoil preferred customer account,so I picked up 8 qts. of Severe Gear 75-90. It'll go in @ 15K. I'll stay with the stock covers.

 

[clndesl]

so i need 8 qts of 75-90 to do the front and back.

 

[Andy Morrison]

I would not use the old oil . Just buy new oil and do it right . You could always wait a little longer before you change.

 

[drewRoberts]

just shy of 2 gal for front and back.

I second andy, wait till 15K then change.

 

[LRutigliano]

What covers did you get? Mag-Hytec or PML? The Mag-Hytec rear cover almost doubles (8qt) the oil capacity, the PML is 1 qt more.



Stock oil amounts are 4. 25qts for the rear, 3. 25 qts for the front.



I have PML and the capacities are 5. 25qt rear and 3. 5qt front.



Don't reuse the old oil for the following reasons:



1) it will have some amount of metal in it because your truck is new.



2) how would you get the oil back into the diffs? What a pain compared to the new oil bottles with the funnel top.



Make sure you get synthetic oil, that is whats recommended, 75W-90.

 

[clndesl]

thank you guys for all your help.

 

[Ducman82]

when i did my Mag-hytec covers i used Royal Purple 75-90. used just under 2. 5 gallons

 

[JDerbedrossian]

My differential guy that has 30 years experiance told me to use Valvoline 85-140 and nothing else. 75,000 miles and not one chatter or problems, and the gears look good as new.

Jake

 

[AH64ID]

I am putting my maghytec cover, rear only, on today. . . I will be swapping the front and rear to Amsoil SVG 75w-90.