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2003 F250 V10 question

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Old 06-18-2017, 11:25 AM
BadFishCharters BadFishCharters is offline
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2003 F250 V10 question

Howdy guys. New to the forum.

I'm looking at a 2003 F250 V10 4x4 single cab regular bed. This is going to be towing my 24 foot boat locally every day as I'm a charter captain.

I've browsed the forums and have seem most of the common V10 problems. Is there anything else I want to really look at or into on this vehicle? It has 122000 miles. Any gotchas or telltales to look out for specific to this vehicle to make me walk away?

Is there an easy way to tell the gear ratio be it VIN code or door jamb sticker code?

I currently have a 2003 Avalanche Z71 and the one thing I love about this truck is the rear end has a mechanical locker from the factory which is great with our slippery boat ramps. Did Ford do anything like this and if so, is there a way to identify if it has one?

Thanks for the guidance and help all.
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Old 06-18-2017, 08:09 PM
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Get the AXLE code off the door jamb sticker. Axle codes are posted here on this site, poke around. The code will tell you if it's a limited slip or an open diff.
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Old 06-19-2017, 05:21 AM
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DOOR STICKER AXLE CODES:

37- 3.73

3L- 3.73 LS

41- 4.10

4N- 4.10 LS

43- 4.30

4L- 4.30 LS

48- 4.88

8L- 4.88 LS

53- 5.38

5L- 5.38 LS
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Old 06-19-2017, 06:06 AM
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Stuart,

I don't know what that listing is from, but it isn't for an 03 Super Duty.

PS89
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Old 06-19-2017, 09:54 AM
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It is from the Tech Folder, and yes it does cover door sticker axle codes for MY 2003.
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Old 06-19-2017, 10:34 AM
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There are two listings of axle codes in the SD Tech Folder.

One is correct (Post #3) for this poster's vehicle while the other, which you happened to have copied (post #9), is not correct for this vehicle. The list in post #9 is probably for a later generation vehicle but was not properly identified when it was added.
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Old 06-19-2017, 01:47 PM
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Here's the full list. The ones Redford posted are for 05-07 and maybe 08-10 the top ones on the list will apply to you down c3
Axle Codes
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
36 — 4.56 non-limited slip, F-250
C6 — 4.56 limited slip, F-250
41 — 3.73 non-limited slip, F-350 (single rear wheels)
D1 — 3.73 limited slip, F-350 (single rear wheels)
42 — 4.10 non-limited slip, F-350 (single rear wheels)
D2 — 4.10 limited slip, F-350 (single rear wheels)
43 — 4.30 non-limited slip, F-350 (single rear wheels)
D3 — 4.30 limited slip, F-350 (single rear wheels)
46 — 4.56 non-limited slip, F-350 (single rear wheels)
D6 — 4.56 limited slip, F-350 (single rear wheels)
61 — 3.73 non-limited slip, F-350 (dual rear wheels)
F1 — 3.73 limited slip, F-350 (dual rear wheels)
62 — 4.10 non-limited slip, F-350 (dual rear wheels)
F2 — 4.10 limited slip, F-350 (dual rear wheels)
63 — 4.30 non-limited slip, F-350 (dual rear wheels)
66 — 4.56 non-limited slip, F-350 (dual rear wheels)
F6 — 4.56 limited slip, F-350 (dual rear wheels)
81 — 3.73 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E1 — 3.73 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
82 — 4.10 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E2 — 4.10 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
83 — 4.30 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E3 — 4.30 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
86 — 4.56 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E6 — 4.56 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
88 — 4.88 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
EW — 4.88 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
G3 — 4.30 limited slip, F-450 Chassis Cab
73 — 4.30 non-limited slip, F-450 Chassis Cab
78 — 4.88 non-limited slip, F-450 Chassis Cab
G8 — 4.88 limited slip, F-450 Chassis Cab
75 — 5.38 non-limited slip, F-450 Chassis Cab
G5 — 5.38 limited slip, F-450 Chassis Cab
GW — 4.10 limited slip, F-450 Chassis Cab
98 — 4.88 non-limited slip, F-550 Chassis Cab
K8 — 4.88 limited slip, F-550 Chassis Cab
95 — 5.38 non-limited slip, F-550 Chassis Cab
K5 — 5.38 limited slip, F-550 Chassis Cab
KW — 4.10 limited slip, F-550 Chassis Cab

05-07 axle codes
37- 3.73

3L- 3.73 LS

41- 4.10

4N- 4.10 LS

43- 4.30

4L- 4.30 LS

48- 4.88

8L- 4.88 LS

53- 5.38

5L- 5.38 LSTransmission Type
E — Four-speed automatic overdrive (4R100), gasoline engines, F-Series/Excursion
9 — Four-speed automatic overdrive (4R100), diesel engine, F-Series/Excursion
6 — Six-speed manual, Dana ZF (M6HD-6), F-Series
5 — Six-speed manual, F-Series (5.4L, 6.8L Gas)
2 — Five-speed manual, F-Series (5.4L, 6.8L Gas/LPG), Mexico only
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Old 06-20-2017, 12:42 PM
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Quote:
Originally Posted by Mike189677 View Post
Here's the full list. The ones Redford posted are for 05-07 and maybe 08-10 the top ones on the list will apply to you down c3
Axle Codes
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
36 — 4.56 non-limited slip, F-250
C6 — 4.56 limited slip, F-250
41 — 3.73 non-limited slip, F-350 (single rear wheels)
D1 — 3.73 limited slip, F-350 (single rear wheels)
42 — 4.10 non-limited slip, F-350 (single rear wheels)
D2 — 4.10 limited slip, F-350 (single rear wheels)
43 — 4.30 non-limited slip, F-350 (single rear wheels)
D3 — 4.30 limited slip, F-350 (single rear wheels)
46 — 4.56 non-limited slip, F-350 (single rear wheels)
D6 — 4.56 limited slip, F-350 (single rear wheels)
61 — 3.73 non-limited slip, F-350 (dual rear wheels)
F1 — 3.73 limited slip, F-350 (dual rear wheels)
62 — 4.10 non-limited slip, F-350 (dual rear wheels)
F2 — 4.10 limited slip, F-350 (dual rear wheels)
63 — 4.30 non-limited slip, F-350 (dual rear wheels)
66 — 4.56 non-limited slip, F-350 (dual rear wheels)
F6 — 4.56 limited slip, F-350 (dual rear wheels)
81 — 3.73 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E1 — 3.73 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
82 — 4.10 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E2 — 4.10 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
83 — 4.30 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E3 — 4.30 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
86 — 4.56 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E6 — 4.56 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
88 — 4.88 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
EW — 4.88 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
G3 — 4.30 limited slip, F-450 Chassis Cab
73 — 4.30 non-limited slip, F-450 Chassis Cab
78 — 4.88 non-limited slip, F-450 Chassis Cab
G8 — 4.88 limited slip, F-450 Chassis Cab
75 — 5.38 non-limited slip, F-450 Chassis Cab
G5 — 5.38 limited slip, F-450 Chassis Cab
GW — 4.10 limited slip, F-450 Chassis Cab
98 — 4.88 non-limited slip, F-550 Chassis Cab
K8 — 4.88 limited slip, F-550 Chassis Cab
95 — 5.38 non-limited slip, F-550 Chassis Cab
K5 — 5.38 limited slip, F-550 Chassis Cab
KW — 4.10 limited slip, F-550 Chassis Cab

05-07 axle codes
37- 3.73

3L- 3.73 LS

41- 4.10

4N- 4.10 LS

43- 4.30

4L- 4.30 LS

48- 4.88

8L- 4.88 LS

53- 5.38

5L- 5.38 LSTransmission Type
E — Four-speed automatic overdrive (4R100), gasoline engines, F-Series/Excursion
9 — Four-speed automatic overdrive (4R100), diesel engine, F-Series/Excursion
6 — Six-speed manual, Dana ZF (M6HD-6), F-Series
5 — Six-speed manual, F-Series (5.4L, 6.8L Gas)
2 — Five-speed manual, F-Series (5.4L, 6.8L Gas/LPG), Mexico only
Your list is for the axle tag codes, not the door sticker axle codes.
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Old 06-20-2017, 12:54 PM
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Quote:
Originally Posted by redford View Post
Your list is for the axle tag codes, not the door sticker axle codes.
Not according to every single door sticker on every super duty I've ever looked at and I've seen a few I looked at ton of trucks when looking for my current one. The axle code on my door sticker is C1 which matches the list for 99-04 not trying argue with you here but it is what it is.
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Old 06-20-2017, 01:06 PM
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The listing in post #7 is for the VC label AXLE codes, not the axle tag. Data on an axle tag is of a completely different format.

Please refer to the relevant factory Workshop Manual under the section titled "Identification Codes > Vehicle Certification (VC) Label.
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