Limited slip question
Thread Starter
|
Senior User
Joined: Feb 2004
Posts: 438
Likes: 0
From: Ormond Beach
Limited slip question
Truck - 2004 F 250 4x4
Motor - 5.4 gas
Gears - 4.88's (8 in lift with 37's)
My turck is supposed to be equiped with limited slip. The other day I was backing up a soft sand bank to hook up to a trailer and my passenger side rear wheel started to spin. I put the juice to it more to see if the limited slip would power up the other wheel also. It did not only burried the right rear wheel.
When I was getting my gears put in the mechanic showed me that the truck is equipped with it.
So what gives?
Thanks
DD
Motor - 5.4 gas
Gears - 4.88's (8 in lift with 37's)
My turck is supposed to be equiped with limited slip. The other day I was backing up a soft sand bank to hook up to a trailer and my passenger side rear wheel started to spin. I put the juice to it more to see if the limited slip would power up the other wheel also. It did not only burried the right rear wheel.
When I was getting my gears put in the mechanic showed me that the truck is equipped with it.
So what gives?
Thanks
DD
Elder User
Joined: Jan 2004
Posts: 561
Likes: 0
From: houston
The operative word here is LIMITED. The big problem is that the tighter a limited slip clutch pack is, the more noise they make in tight turns at low speeds. People don't like their new cars and trucks to make noise. So the factory builds the packs loose and then to make matters worse they put a friction modifier in the lube to make the clutches slip even more. I'll bet if you jackup your truck you can turn the wheel by hand. Now if you can overcome that clutch pack, how much power do you think is getting to the ground?
Freshman User
Joined: Sep 2004
Posts: 44
Likes: 0
If still under warranty ,your clutch pack is worn out. The replacement is fairly easy and ask to have the pack shimmed to the minimum for added bite and life. The only drawback will be occasional chatter in tight turns.Parts for the old 9" or the 8.8 are about $100 I expect a little higher for the larger sterling axle but probably not much.
Posting Guru
Joined: Apr 2004
Posts: 1,342
Likes: 0
From: Georgia
I noticed that mine was doing the same thing so I drained the diff. and refilled with fluid and ford recomended additive and no more slipping. A lot quicker and cheaper than taking it somewhere to have new clutch pack put in. May want to try this first. Make sure you use the correct additive though. I got mine at the dealer.
Postmaster
Joined: Dec 2002
Posts: 3,959
Likes: 9
From: USA
You can help your limited slip to lock up by applying a little brake while giving it gas. The brake reduces the torque difference between the two axles to below the slipping torque. You can do it with either the e-brake or the service brake, either way works.
Freshman User
Joined: Sep 2004
Posts: 40
Likes: 0
From: CALIFORNIA
I Have A 2004 F250 Sd Crew Psd. My Factory Sticker Says It Has A "locking Differential". The Dealer Said This Is Better Than The Limited Slip. I Have Driven It Off Road, And Have Never Noticed One Tire Slipping. Whats The Difference?
Posting Guru
Joined: Mar 2004
Posts: 1,321
Likes: 2
From: MI
Originally Posted by roadturtlepsd
I Have A 2004 F250 Sd Crew Psd. My Factory Sticker Says It Has A "locking Differential". The Dealer Said This Is Better Than The Limited Slip. I Have Driven It Off Road, And Have Never Noticed One Tire Slipping. Whats The Difference?
Trending Topics
Freshman User
Joined: Sep 2004
Posts: 40
Likes: 0
From: CALIFORNIA
But, Do Both Wheels Apply Torgue To The Ground. I Have Seen Both Wheels Spin In Sand, And On The Asphalt. I Have Watch My Wife Spin The Tires On Our Street The Very Few Times I Let Her Drive My Truck.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
Originally Posted by roadturtlepsd
I Have A 2004 F250 Sd Crew Psd. My Factory Sticker Says It Has A "locking Differential". The Dealer Said This Is Better Than The Limited Slip. I Have Driven It Off Road, And Have Never Noticed One Tire Slipping. Whats The Difference?
Never heard of that one...
Postmaster
Joined: Jan 2004
Posts: 4,758
Likes: 7
From: colorado
Originally Posted by 99f350sd
Never heard of that one...
Thread Starter
|
Senior User
Joined: Feb 2004
Posts: 438
Likes: 0
From: Ormond Beach
I will try the fluid change first because I doubt there is any warranty left on it since I have placed 4.88's in the rear ends and lifted it up. It only has 12k mile on it though...
To the other poster the dealer was talking about a limited slip differental - that is the only way they came from the factroy other than open.
No such thing as a locking from the factory.
To the other poster the dealer was talking about a limited slip differental - that is the only way they came from the factroy other than open.
No such thing as a locking from the factory.
Freshman User
Joined: Sep 2004
Posts: 40
Likes: 0
From: CALIFORNIA
Originally Posted by roadturtlepsd
I Have A 2004 F250 Sd Crew Psd. My Factory Sticker Says It Has A "locking Differential". The Dealer Said This Is Better Than The Limited Slip. I Have Driven It Off Road, And Have Never Noticed One Tire Slipping. Whats The Difference?
Post Fiend
Joined: Jan 2002
Posts: 5,859
Likes: 7
From: USA
Socal ,hit the nail on the head.certain situations,also type of ground your on either tire can break loose it.if this happens apply the brake and they will both spin.I've seen and had the weight of the truck be shifted to one side of the truck ,where the opposite wheel will spin,then apply the brake slightly then both will spin to get me out of a snow bank while plowing.
Rich
Rich
Posting Guru
Joined: Mar 2004
Posts: 1,321
Likes: 2
From: MI
Originally Posted by roadturtlepsd
But, Do Both Wheels Apply Torgue To The Ground. I Have Seen Both Wheels Spin In Sand, And On The Asphalt. I Have Watch My Wife Spin The Tires On Our Street The Very Few Times I Let Her Drive My Truck.
Thread
Thread Starter
Forum
Replies
Last Post
fordmanva
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
1
Mar 13, 2012 09:23 PM