HELP!!!!!Can anyone help read rear end tags??? - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 11-07-2008, 02:56 PM Thread Starter
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HELP!!!!!Can anyone help read rear end tags???

to make a long story short, i have a 97 obs 5-speed... the tag on the rear end reads,
S 125 N
3.55 10 2 6 H16
and in the door jam reads axle- 39 i`m assuming that i have 3.55 gears...
so i have this other truck, a 91 F-250 and i has a posi rear, i`ve been thinking about swaping them, so today crawled under to get the tag off the rear.. it reads....
2 V107L
3L55 102 OK23

tag in the door jam reads, B9 i`m geussing that the 3L55 means 3.55 gears??? if they both have the same ratio i`m swap`n the rears sunday....

any help would be great!

97 OBS 183k, 5-speed, 3.5"dp,4"exh,diy intake,luk solid flywheel swap,edge evo, AND NEW PAINT!
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post #2 of 9 Old 11-07-2008, 03:06 PM
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your owners maneul should tell you i looked mine up and its 4.10
i have a 1996 ill run out to my truck for ya

1996 F350 4x4 Powerstroke Diesel
Afe Stage 2
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post #3 of 9 Old 11-07-2008, 03:10 PM
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yes they are indeed 3.55 gears

1996 F350 4x4 Powerstroke Diesel
Afe Stage 2
3 Inch Downpipe,Cat-Delete,90 degree elbow(ss)
Diy Exhust Brake
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post #4 of 9 Old 11-07-2008, 03:38 PM
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Yes, the 3L55 means 3.55 Limited slip. If it doesn't have the "L" it is an open differential.

95 F-250 SC LB 4wd, Super Duty oil dipstick Foil delete and Live Tuned by Tony

02 Excursion, 4wd, H2E, Tapercore, BTS oil, BTS trans, AirDog, Stage 1 injectors and Live Tuned by Tony Wildman oh and Foil delete
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post #5 of 9 Old 11-07-2008, 04:38 PM Thread Starter
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so there shouldnt be any problem swapping the complete rear end into my truck??? from what i found my rear end max cap is 6250lbs and the one out of the 91 f-250 is max cap is 5300lb should be ok, i`ll just keep mine as a spare if i rip the other one out...

97 OBS 183k, 5-speed, 3.5"dp,4"exh,diy intake,luk solid flywheel swap,edge evo, AND NEW PAINT!
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post #6 of 9 Old 11-07-2008, 05:10 PM
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If they are both 10.25 Sterling axles they are the same, the difference will be in the springs.

95 F-250 SC LB 4wd, Super Duty oil dipstick Foil delete and Live Tuned by Tony

02 Excursion, 4wd, H2E, Tapercore, BTS oil, BTS trans, AirDog, Stage 1 injectors and Live Tuned by Tony Wildman oh and Foil delete
Matched Perfect and Staggered Special

Quote:
Originally Posted by Mason
If you don't have this chip, slap yourself. This chip from Tony Wildman is the craziest custom tune ever.
Behold the pale horse. The man who sat on him was Death... and Hell followed with him
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post #7 of 9 Old 11-07-2008, 06:09 PM
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See if this helps out a bit...

I went through this when I was deciphering out a tag, on an axle that I had sold. Attached below is an explanation of the tag pictured...

S125N
S = Sterling Axle
125 = Model Numer
N = Revision Number

355 102 7A21
3.55 = Gear ratio
Open Differential (An "L" here would mean limited slip - the one below is not)
102 = Ring gear size (10.25")
7 = Year made (1997)
A = Month made (January)
21 = Date made


2008 Dodge 2500 Mega Ram, 6.7L, 4x4, 3.73s

SOLD...
1997 F-250 HD, PSD, XLT, Off-Road Pkg., 3.55's, E4OD, 4wd, Dana 60 front axle, 3" Sky RSK, 150,000 miles, Tunes by XM, triple Auto Meter Guages, Tymar Intake, Tymar DP, Straight piped, Killed the kitty, 5" Miters, Programs by DP Tuning, Lund visor, Diamond plate bed rails, Delta toolbox, Rollin' on 315/70/17's on some Raceline's.
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post #8 of 9 Old 11-08-2008, 05:28 AM Thread Starter
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hmmmm... on the onlder rear end tag there is no S on the tag... it says
V 107 C but they look the same?? mine has S 125 N

97 OBS 183k, 5-speed, 3.5"dp,4"exh,diy intake,luk solid flywheel swap,edge evo, AND NEW PAINT!
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post #9 of 9 Old 11-09-2008, 06:08 PM
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what about the VSS ? No Speed O

96 F350 Dually Super Cab 7.3 Stock. Now I have a Solid Mass Flywheel.
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