04-13-2015, 06:01 PM
Last edit by: IB Advertising
Differential Oil - What do you use in the Rear End
http://www.f150online.com/forums/oth...-rear-end.html
ISSUE
Recommendation for best oil to use for the rear differential including different options and pricing
Read below for the full discussion…
http://www.f150online.com/forums/oth...-rear-end.html
ISSUE
Recommendation for best oil to use for the rear differential including different options and pricing
Read below for the full discussion…
Differential Oil - What do you use in the Rear End
#91
02-26-2017, 08:56 PM
Senior Member
Fram filters are garbage! The Motorcraft filter is a high quality filter.
I agree about using a gasket on the diff cover though. Makes the job go a lot quicker, you don't have to wait to let the RTV set before installing the cover. I do use a very thin coat of RTV in addition to the gasket, you don't have to let that set.
I agree about using a gasket on the diff cover though. Makes the job go a lot quicker, you don't have to wait to let the RTV set before installing the cover. I do use a very thin coat of RTV in addition to the gasket, you don't have to let that set.
#93
05-10-2017, 07:38 PM
2003 ford f150
I have a 2003 ford f150 and I am looking to change the rear diff fluid
it is a 3.73 LS rear end
the tag looks like it says "75W90" on the tag but i cant be sure after looking online it looks like i should use 75W140
I dont know which to use and dont know what kind of additive to add any help would be great!
it is a 3.73 LS rear end
the tag looks like it says "75W90" on the tag but i cant be sure after looking online it looks like i should use 75W140
I dont know which to use and dont know what kind of additive to add any help would be great!
#94
05-11-2017, 12:36 AM
75W140 full synthetic with a bottle of Ford XL3. Autozone carries Valvoline 75W140, get the XL3 from the dealer, it's not expensive.
http://www.autozone.com/greases-and-...oz-/977483_0_0
http://www.autozone.com/greases-and-...oz-/977483_0_0
