i was wonder i switch diff covers to AFE ones, and oil to Royal purple, but when i switched oils i screwed up and just got 75W-90 and put that in the front and rear diffs, but i recently found out the rear should have 75W-140. I was wondering if the 75W-90 oil in the rear diff is gonna hurt anything till i can get home from work and replace it. also im sure of it the shop that put the new pans on didnt quite add enough fluid to the front diff, on the site glass on the front diff pan the oil is at the very bottom of it not in the middle of the site glass as AFE recommened. Should i be fine or be worried about that. the front diff isnt making any noises or anything. if anyone can help i would greatly appreciate it

 

change them both and fill till the oil comes out the fill hole.

You will be fine to drive hom as long as you are not towing and driving excessivly fast.

Ambient temps are in your favor and light driving.

 

thats the thing though i dont have a the stock diff pans on anymore i have aftermarket ones, the fill hole is ontop of the diff pans now. i was reading the install instructions and it said for the front diff that it has to be in the middle of the site glass on the diff pan and i was looking at the oil level and it is at the bottom of the site glass. i was just wondering if it is gonna hurt my front diff if it is like .25 of a litres low or not.

 

No it won't hurt. So now I understand the differences.

Only way I know of is the consult your owners manual for the capacities of the differentials and put in that amount