99.5 rear end ID for limited slip - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by INT_MAN, this thread has received 5 replies and been viewed 1592 times.

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 04-29-2010, 06:52 AM Thread Starter
Junior Member
 
Join Date: Aug 2007
Location: southern maryland
Posts: 128
Points: 29,043
Thanks: 3
Thanked 5 Times in 5 Posts
99.5 rear end ID for limited slip

on my 99.5 f250sd, the axle code is a little different than the 8.8 rears, the codes are more difficult to decipher. what tells me whether it is an open diff or limited slip?

Late 99 F250 powerstroke 4x4, PMR motor all stock except for muffler/cat delete 315/75/16 tires SOLD

1990 BMY M923 5 Ton 6X6 military truck with 8.3 cummins, allison mt643c, central tire inflation system, 49 inch goodyears (1400x20)

1999 international s/a tractor 4900, air brakes, dt466ht fuller 6 speed air brakes 11r22.5
INT_MAN is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 04-30-2010, 11:19 AM
Senior Member
 
brendonv's Avatar
 
Join Date: Dec 2008
Location: Seymour, Connecticut
Posts: 442
Points: 37,624
Thanks: 3
Thanked 23 Times in 22 Posts
Try this.

https://www.thedieselgarage.com/forum...ad.php?t=83514

Early 1999 F350 DRW Dump, 6spd 4x4, 4" Turbo Back and DIY Intake

Early 1999 F350 SRW 8' Box, 6spd 4x4 Stock
brendonv is offline  
The Following User Says Thank You to brendonv For this addition to TDG:
INT_MAN (05-01-2010)
post #3 of 6 (permalink) Old 04-30-2010, 05:14 PM
Mod Friendly Title
 
Zaairman's Avatar
 
Join Date: Dec 2008
Location: St. Charles/Rolla, MO
Posts: 2,695
Points: 79,323
Thanks: 18
Thanked 117 Times in 106 Posts
Send a message via AIM to Zaairman
The tag on the rear end will say "3L73" or something like that.

Zach
2000/2006ish Ford F-250 Larryette 7.3 Powerstroke 4x4
5" Sewer Pipe Exhaust (video clip), DIY 6637 Intake, Wicked Wheel'd, De-foiled, Missing EBPV, Edge Juice with Attitude, X Code Springs, 33" BFGs (SUCK), Alpine W200, Pioneer "D" Series Kevlar 6x8"s, Sirius Satellite Radio, 12" Memphis Pro Audio Subwoofer.
20x10 Mickey Thompson Classic IIs, waiting on tires


SLAPS Member #153

Just because I kiss the prettiest girls and I drive my truck too fast, why does everybody want to kick my @ss?

Donut Video
Zaairman is offline  
post #4 of 6 (permalink) Old 05-01-2010, 08:35 AM Thread Starter
Junior Member
Threadstarter
 
Join Date: Aug 2007
Location: southern maryland
Posts: 128
Points: 29,043
Thanks: 3
Thanked 5 Times in 5 Posts
no, actually it wont. mustangs and explorers do, but this tag has nothing like that. the code is c1, which is 3.73 limited slip. apparently the axle manufacturer uses more complicated codes than ford does.

Late 99 F250 powerstroke 4x4, PMR motor all stock except for muffler/cat delete 315/75/16 tires SOLD

1990 BMY M923 5 Ton 6X6 military truck with 8.3 cummins, allison mt643c, central tire inflation system, 49 inch goodyears (1400x20)

1999 international s/a tractor 4900, air brakes, dt466ht fuller 6 speed air brakes 11r22.5
INT_MAN is offline  
post #5 of 6 (permalink) Old 05-01-2010, 01:09 PM
Senior Member
 
4cstr's Avatar
 
Join Date: May 2005
Location: South Dakota
Posts: 8,265
Points: 89,862
Thanks: 245
Thanked 713 Times in 340 Posts
Images: 35
I have a tag on my early 99 that does say L373 or something to that effect.

I believe the door tag says something simple like C1 to indicate axle code though.

~Dave~

2012 F350 KR Dually, stock...bone stock.

early 99 PSD CC F250, DP Tuner F-5, Stealth Stage I, Casserly 160cc singles, Monsterbox Tranny, MBRP cool duals, ITP Regulated fuel system, Cobalts and Performax gauges, and way to much else to remember right now. **traded**

2004 Excursion Limited 6.0L, Dipricol gauges on the A-Pillar, Bilsteins and BFG's on the corners, lost EGR (not looking hard for it either), ARP studs, RCD Black Onyx head gaskets, MBRP 4" exhaust, (labor performed by Dan @ Midwest Transmission) **giggled when traded**

Quote:
I'm pretty good at drinkin beer -Billy Currington
4cstr is offline  
post #6 of 6 (permalink) Old 05-01-2010, 04:45 PM
Mod Friendly Title
 
Zaairman's Avatar
 
Join Date: Dec 2008
Location: St. Charles/Rolla, MO
Posts: 2,695
Points: 79,323
Thanks: 18
Thanked 117 Times in 106 Posts
Send a message via AIM to Zaairman
Quote:
Originally Posted by INT_MAN View Post
no, actually it wont. mustangs and explorers do, but this tag has nothing like that. the code is c1, which is 3.73 limited slip. apparently the axle manufacturer uses more complicated codes than ford does.
Want me to take a picture of the tag on my rear axle that says 3L73???

The C1 code you're talking about is on the door jam sticker, not the rear axle. And the Ford codes are very easy to decipher. If there is a letter in the code, then it has a LS. For example, my F-150 had 3.55 gears with a limited slip. It's code was H9. If it didn't have limited slip, it would have been 19. If you would have spent 2 minutes of Googling "Ford axle codes" you would have found all of this out.

Zach
2000/2006ish Ford F-250 Larryette 7.3 Powerstroke 4x4
5" Sewer Pipe Exhaust (video clip), DIY 6637 Intake, Wicked Wheel'd, De-foiled, Missing EBPV, Edge Juice with Attitude, X Code Springs, 33" BFGs (SUCK), Alpine W200, Pioneer "D" Series Kevlar 6x8"s, Sirius Satellite Radio, 12" Memphis Pro Audio Subwoofer.
20x10 Mickey Thompson Classic IIs, waiting on tires


SLAPS Member #153

Just because I kiss the prettiest girls and I drive my truck too fast, why does everybody want to kick my @ss?

Donut Video
Zaairman is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com 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










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



Similar Threads
Thread Thread Starter Forum Replies Last Post
rear limited slip rebuild. buffalobob 1994-2003 7.3L Power Stroke 5 05-22-2009 06:35 PM
limited slip rear end powerstroke7.3 1994-2003 7.3L Power Stroke 8 10-16-2007 08:38 PM
rear limited slip big hunter 1994-2003 7.3L Power Stroke 1 12-17-2006 01:31 AM
Rear Limited Slip problems $trokin60 2003-2007 6.0L Power Stroke 7 07-12-2006 03:59 PM

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