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

rear end ID

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Old Apr 21, 2002 | 02:10 PM
  #1  
hungrymonkey's Avatar
hungrymonkey
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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
 
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Old Apr 21, 2002 | 02:29 PM
  #2  
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Mil1ion
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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]
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Need to decode your 78 Truck data plate? click here

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[font color=blue]78 F-150 429CJ,Silver,Explorer Pkg.
641/2-Mustang 260,Pre-World's Fair Car.
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Old Apr 21, 2002 | 02:45 PM
  #3  
hungrymonkey's Avatar
hungrymonkey
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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?
 
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Old Apr 21, 2002 | 09:58 PM
  #4  
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HotWhlz85
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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



 
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Old Apr 22, 2002 | 12:30 AM
  #5  
Mil1ion's Avatar
Mil1ion
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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]

 
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Old Apr 22, 2002 | 07:28 AM
  #6  
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slikness
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From: Durham
rear end ID

 
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