Notices
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

rear end ID

Thread Tools
 
Search this Thread
 
Old Apr 21, 2002 | 02:10 PM
  #1  
hungrymonkey's Avatar
hungrymonkey
Thread Starter
|
Senior User
Joined: Apr 2002
Posts: 198
Likes: 0
From: Oregon
rear end ID

hello this is my second post in this forum.
i have an 86 F150 with the 351w (5.8L) 4v HO carburetted engine.

i have a question about rear end ID.

i was wondering if any of you have a link to a site where i can run the numbers from my id tag?

here are the numbers

s31 9 6a20

thanks
 
Reply
Old Apr 21, 2002 | 02:29 PM
  #2  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
rear end ID

[updated:LAST EDITED ON 21-Apr-02 AT 03:30 PM (EST)]What exactly are you trying to find out ?
The ratio?

If so, The numbers on the bottom left of the metal axle tag show the ratio the next number would be a 9 for 9" ford.

All the other numbers/letters are just ford numbers
Date/Plant of build/and bearings applicable.

[b][i][font color=red]Dennis[/font][i][b]

[font color=red]Calgary,Alberta,Canada[/font]
http://www.clubfte.com/users/mil1ion/Minimorleytruck.JPG

Need to decode your 78 Truck data plate? click here

http://www.clubfte.com/users/mil1ion/FordTruckCodes.html

[font color=red]If New Ford Parts Is What You're Cravin',
Then Buy Them HERE,At Motorhaven!

[/font]


Feel free to visit my website.

http://www.clubfte.com/users/mil1ion/Mil1ion.html

[font color =red] Please Don't Ask Me Any Tough Questions,
"I'm Saving My Memory For When I Develop Alzheimer's" [/font]



[font color=blue]78 F-150 429CJ,Silver,Explorer Pkg.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon [/font]

 
Reply
Old Apr 21, 2002 | 02:45 PM
  #3  
hungrymonkey's Avatar
hungrymonkey
Thread Starter
|
Senior User
Joined: Apr 2002
Posts: 198
Likes: 0
From: Oregon
rear end ID

yup i am trying to find the ratio.
hey your not HIYoSilver on stangnet are you? same avatar.

the numbers are s 3 1 8 D 9 6 a 2 0

it auto put a smiley on there.

how would i tell if its an open or trac lock?

so would my ratio be 3.18?
 
Reply
Old Apr 21, 2002 | 09:58 PM
  #4  
HotWhlz85's Avatar
HotWhlz85
Laughing Gas
20 Year Member
Joined: Apr 2001
Posts: 1,024
Likes: 0
From: Elon, NC
rear end ID

You can also check your truck ID plate. It's found on the driver's door frame. Along the bottom of the plate (which is just a plastic tag) there is a code for the axle that will be something like C9....something like that. Your truck owner's manual decodes that for you. If you dont have a manual post what you find here and we'll decode it for you.

Ron



 
Reply
Old Apr 22, 2002 | 12:30 AM
  #5  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
rear end ID

No, Not me.

I don't know where you are getting that "S" before the "3"

Traction lock rear in a 3.25:1 ratio would read from the bottom left like this:
3L25 9 ???

Now, A NON-Locking rear of the same ratio would read:
3 25 ???

What code does it say on the Door frame Data sticker ??


[b][i][font color=red]Dennis[/font][i][b]

[font color=red]Calgary,Alberta,Canada[/font]
http://www.clubfte.com/users/mil1ion/Minimorleytruck.JPG

Need to decode your 78 Truck data plate? click here

http://www.clubfte.com/users/mil1ion/FordTruckCodes.html

[font color=red]If New Ford Parts Is What You're Cravin',
Then Buy Them HERE,At Motorhaven!

[/font]


Feel free to visit my website.

http://www.clubfte.com/users/mil1ion/Mil1ion.html

[font color =red] Please Don't Ask Me Any Tough Questions,
"I'm Saving My Memory For When I Develop Alzheimer's" [/font]



[font color=blue]78 F-150 429CJ,Silver,Explorer Pkg.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon [/font]

 
Reply
Old Apr 22, 2002 | 07:28 AM
  #6  
slikness's Avatar
slikness
Posting Guru
25 Year Member
Joined: Jun 1999
Posts: 1,100
Likes: 0
From: Durham
rear end ID

 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Q in Sac
1987 - 1996 F150 & Larger F-Series Trucks
5
Apr 20, 2009 08:02 PM
JameyZ28
1961 - 1966 F-100 & Larger F-Series Trucks
4
Jul 24, 2008 10:44 AM
Stretch Jr.12
Offroad & 4x4
20
Aug 3, 2005 08:08 PM
grey77
Clutch, Transmission, Differential, Axle & Transfer Case
2
Mar 8, 2004 02:26 PM
StockMan
1967 - 1972 F-100 & Larger F-Series Trucks
4
Jun 4, 2002 08:39 PM




All times are GMT -5. The time now is 07:18 PM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE