Trying to figure if it has 4.1 or 4.3 rear gears. Thanks
Which Rear is this?
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New User
Joined: May 2006
Posts: 24
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Which Rear is this?
2001 v10 with unknown rear end. No vehicle certification label on the door.
Rear end has two steel tags that are hard to read but appear to say:
S 141 H
73 105 OK30
----------------and the other says
SW140 SYNTH
OIL ONLY
The tach reads about 1900 rmp at 60 mph, but it's not the most precise dial.
Rear end has two steel tags that are hard to read but appear to say:
S 141 H
73 105 OK30
----------------and the other says
SW140 SYNTH
OIL ONLY
The tach reads about 1900 rmp at 60 mph, but it's not the most precise dial.
Lead Driver
Joined: Sep 2003
Posts: 5,844
Likes: 5
From: Albuquerque
Check your VIN door sticker for the code under Axle. Here is the link for future reference: https://www.ford-trucks.com/forums/s...d.php?t=139080
A heck...here are the codes...
Axle Type
31 — 3.73 non-limited slip, F-250/Excursion
C1 — 3.73 limited slip, F-250/Excursion
32 — 4.10 non-limited slip, F-250
C2 — 4.10 limited slip, F-250/Excursion
33 — 4.30 non-limited slip, F-250
C3 — 4.30 limited slip, F-250/Excursion
biz
_______________________________
2003 F250 SD SC 142" XLT FX4 V10 Auto 4x4 3.73s
A heck...here are the codes...
Axle Type
31 — 3.73 non-limited slip, F-250/Excursion
C1 — 3.73 limited slip, F-250/Excursion
32 — 4.10 non-limited slip, F-250
C2 — 4.10 limited slip, F-250/Excursion
33 — 4.30 non-limited slip, F-250
C3 — 4.30 limited slip, F-250/Excursion
biz
_______________________________
2003 F250 SD SC 142" XLT FX4 V10 Auto 4x4 3.73s
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FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 421
From: Long Island USA
That's almost the exact same thing my diff tag says (it's in my hand)...
My says "L73" instead of just 73. Here's why:
I have a 3.73 limited-slip. So, there should be a "3L73" on my tag. But the first "3" was under the bolt head and was crushed, so it's almost impossible to see. The "L" means limited-slip.
On yours, the tag means it's GOT to be a 3.73 with an open diff.
My says "L73" instead of just 73. Here's why:
I have a 3.73 limited-slip. So, there should be a "3L73" on my tag. But the first "3" was under the bolt head and was crushed, so it's almost impossible to see. The "L" means limited-slip.
On yours, the tag means it's GOT to be a 3.73 with an open diff.
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