limited slip is horrible - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 03-10-2009, 07:58 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2009
Posts: 25
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
limited slip is horrible

how do i make the limited slip better. i want grippier than it was from the factory is that possible? is there an inexpensive web site to get the rebuild kit from.
scott037 is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 03-10-2009, 08:23 AM
Compression Ignition Addict
 
Raul@Stealth Automotive's Avatar
 
Join Date: Oct 2006
Location: Ventura County, CA
Posts: 20,359
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 23
Thanked 30 Times in 17 Posts
Feedback Score: 2 reviews
Send a message via AIM to Raul@Stealth Automotive
Quote:
Originally Posted by scott037 View Post
how do i make the limited slip better. i want grippier than it was from the factory is that possible? is there an inexpensive web site to get the rebuild kit from.
in order to make it better you need to get rid of the factory LS and either get a better LS like the detroit tru trac or a full locker....
Raul@Stealth Automotive is offline  
post #3 of 9 Old 03-10-2009, 08:38 AM
Premium Member
 
GreenF350's Avatar
 
Join Date: Jan 2007
Location: Florida Panhandle
Posts: 1,710
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Well, since someone else is asking. I guess I will add to it. I know with the 8.8 inch differentials you can rebuild them and add an extra disc from the old setup to the limited slip to make it tighter. Does anyone know if you can do this on the 10.5 limited slip units?
-Aaron

2000 Ext. Cab F350 SRW, 6" Skyjacker lift on front/8" BDS Springs on rear w/NO blocks, 37x13.50 Nitto Mud Grappler's, Aftermarket Front Bumper

-Always More Stuff Coming!
GreenF350 is offline  
post #4 of 9 Old 03-10-2009, 10:38 AM
Compression Ignition Addict
 
Big_Stroker's Avatar
 
Join Date: Feb 2009
Location: Union City, IN
Posts: 862
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to Big_Stroker
what you can do is change the gear oil in the rear diff... and dont add any friction modifier and drive it... if it sticks to much then add just a little till you like how it drives and works.

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Live Tuned By Matt @ Gearhead Automotive

Auto to ZF6 Swap Completed

520hp and 926tq - 5/23/09

516hp and 1121tq - 4/24/10

My Truck Pics
Big_Stroker is offline  
post #5 of 9 Old 03-10-2009, 11:36 AM
Compression Ignition Addict
 
Baddestt's Avatar
 
Join Date: Aug 2008
Location: Central Texas
Posts: 909
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thanks: 0
Thanked 20 Times in 19 Posts
Feedback Score: 0 reviews
There is a differential/axle expert shop here in clearwater florida (alan's gearworks) that has been rebuilding the factory LS with "steel" clutches that apparently grip tighter and last longer, for $150 it's a cheap way to go. They utilize this same process for jeeps as well that have the factory Dana Track-Lok, which is very similar to what Ford uses in the 10.25 and 10.5 axles.

If you have the money, the best way to go is dump the factory LS and get a Detroit Locker or Detroit TrueTrac if you do a lot of towing. Hope this helps.

'07 F-250 PSD 4x4 . S&B, 5" exhaust, zoodad, blue spring, '03 Turbo, 6.4 starter, 2.5 f/coils, adj Trac bar, 2" r/add-a-leafs, egr delete, DC Power 185, Procomp shocks, SCT SF3 tuner, F-Detroit Truetrac, R-Detroit Locker, 4:10 gears, LT315/70r17 Duratracs, Amsoil Gear lube, Amsoil ss fuel efficient ATF, Delo 400 LE 5w30 diesel, archoil 9100/ar6200, bpd ficm, arp studs, oem gaskets, HD water pump, stc, plugs, stand pipes, 6.4 banjo bolts, monitor, new oil cooler, coolant filter
Baddestt is offline  
post #6 of 9 Old 03-10-2009, 12:42 PM
Compression Ignition Addict
 
Join Date: Aug 2008
Location: South Puget Sound, WA
Posts: 578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
My last truck, a chevy product, had a rear positive locking locker. Yes that Eaton locker is known to explode if you're hard on it but the reason I bring it up is that it worked extremely well when towing or in snow. Say you are towing up a boat ramp or grassy hill and since you are towing you're not in 4wd and the one tire slips to bring the truck to a stop. Well the locker will lock that rear end up at low speeds to make a tractor style locked up rear end. It's great. You get the clunk and then instantly begin forward motion. No drama.

I don't like a limited slip diff that depends on a lot of wheel speed to transfer power to the dead tire. When towing and working with heavy equipment and diesels I want things to happen slowly and methodically so an automatic locker is perfect. I would look at an electric or air locker but the added complexity is not desired.

2000 F350 4wd CC SB PSD
Normal mods plus gauges and PHP chip
Lowered to F250 height
Stock tire size, looks stock.

18' 10k# equipment trailer
30' Travel Trailer 7500#
Kioti CK30 tractor
Kawasaki KLX250s Dual Sport
Highbeam is offline  
post #7 of 9 Old 03-10-2009, 12:48 PM
Compression Ignition Addict
 
66Bronco's Avatar
 
Join Date: Mar 2008
Posts: 582
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Truly replacement will work, but a lot of the time, another traction aid won't go on a carrier that already has one. You may have to buy an open carrier in order to put a locker in.

'95 F-250HD
ZF 5-Speed 13'' clutch w/ SMF conversion
B&W Gooseneck
Custom Spare Tire Mount

66Bronco is offline  
post #8 of 9 Old 03-11-2009, 05:05 AM
Powerstroke Junkie


 
NCHornet's Avatar
 
Join Date: Aug 2006
Location: Mayberry, NC
Posts: 8,308
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 49 Times in 11 Posts
Feedback Score: 0 reviews
You don't need to replace it, the problem is Ferd used way, way to much modifier in their LS, change the fluid and add 2 oz and take it to a large parking lot and do some tight figure eight's, if you have rear end chatter, add a nother oz and do it again. Mine took 4 oz to go away. Ferd calls for 8!! No wonder why it doesn't work. My LS works great now. It ain't no locker, but it isn't suppose to be. This is also why I don't use lubricants like Red;line and Amsoil as they have the modifier already in them and it is way on the heavy side as well.

NCH

NCH
Proud Father of USAF Airman


2000 F350 DRW,CC,LB, 4X4, Western Hauler Pkg.
Ford AIS/ BTM, FTVB
My CCV MOD, Coolant filter
06 Grill, 05 lights,6.0 trans cooler
Cyro/Hawks, JVC Touchscreen HU, JL C5's, Infinity 800watt amp,
DP tunes, 60 tow/80 e/120 race, on a SCT2 tuner
P3 controller, Brite Box Turbo Lifesaver
KMC Wheels x 4

http://s132.photobucket.com/user/NCH...=recent&page=1

Friends Don't Let Friends Drive Trucks With Generic Tunes
NCHornet is offline  
post #9 of 9 Old 03-11-2009, 06:46 PM
dmd
Compression Ignition Addict
 
dmd's Avatar
 
Join Date: Oct 2008
Posts: 451
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Quote:
Originally Posted by NCHornet View Post
You don't need to replace it, the problem is Ferd used way, way to much modifier in their LS, change the fluid and add 2 oz and take it to a large parking lot and do some tight figure eight's, if you have rear end chatter, add a nother oz and do it again. Mine took 4 oz to go away. Ferd calls for 8!! No wonder why it doesn't work. My LS works great now. It ain't no locker, but it isn't suppose to be. This is also why I don't use lubricants like Red;line and Amsoil as they have the modifier already in them and it is way on the heavy side as well.

NCH
Exactly... BUT, do add some modifier.. It needs some slip or it will
wear the discs too much going around corners, or the axel will stay
locked when it is raining.

'00 F350 Supercrewzer Lariet, PSD, Auto, 3.73, CC, 4x4, SWB, SRW, 6-pos Chip, 6637 filter, 4-inch turbo back exhaust, Garrett 38r w/ high flow outlet, ITP overboost eliminator, AIH delete, Adrenaline HPOP, BTS Trans, Swamps IDM, In-tank & Pre-Pump mod, Heater Valve mod, X-car Sound Pannel mod, Train Horns / Packages: Trailer Tow, Camper, Off-Road. Overhead monitor DVD/TV/VCR (VCR under rear seat w/ 6 CD changer)
www.employees.org/~calridng (Offroad riding in California)
dmd is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome