Correct Differential Oil?
Thread Starter
|
Freshman User
Joined: Aug 2003
Posts: 30
Likes: 0
From: WI
Correct Differential Oil?
I'm about to change my differential fluid in my 1994 4.0L ranger and want to make sure I have the right stuff. The owners manual specifies M2C154-A and I have no idea what that's equivalent to. I have some 80W-90 Valvoline Gear Oil. Is this the right stuff? I also got the additive for the L/S axle to add. Thanks in advance.
Post Fiend
Joined: Feb 2003
Posts: 6,940
Likes: 2
From: Eastern WA
I changed the rear end oil in my 94 4.0 4x4 supercab yada yada etc 2X so far. First time I used Permatex black and all was well. Ford didn't even offer a gasket. All was fine. Then I changed rear end oil for a second time and I found out Napa had a gasket. BAD MOVE. I installed it and shortly after doing so the rear end cover cracked as evidenced by a leak. I'd strongly suggest using the OEM method; use Permatex black and save yourself a headache 
Laughing Gas
Joined: May 2003
Posts: 1,136
Likes: 1
From: Scenic Wisconsin
75W-90 syn is fine as a replacement for 80W-90. Check your owners manual first, because some of the newer trucks use 75W-140.
Trending Topics
Thread Starter
|
Freshman User
Joined: Aug 2003
Posts: 30
Likes: 0
From: WI
Thanks everyone. I got it all changed. I ended up using RTV (permatex orange colored). Having this forum really helps. Thanks again.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
tje2015
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
9
Jun 15, 2012 04:45 PM
TimH
Clutch, Transmission, Differential, Axle & Transfer Case
2
Jun 16, 2003 08:07 PM
