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Axle code question

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Old

Jan 28, 2008 | 05:24 PM

#1

trike1946

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Joined: Apr 2004

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From: NJ where fun comes to die

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Question

Axle code question

Does anybody know what the 4L axle ratio is? It is in an 06 F450 diesel. Thanks for any help.

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Old

Jan 28, 2008 | 05:27 PM

#2

1toptech

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Joined: Feb 2005

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The axle ratio should be on the tag on the rear differential.

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Old

Jan 28, 2008 | 05:55 PM

#3

trike1946

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From: NJ where fun comes to die

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I was trying not to have to crawl under it since it is sitting in a muddy area. Maybe somebody has a code list. I hope.

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Old

Jan 28, 2008 | 05:59 PM

#4

boxcar1974

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From: Massachusetts

Looks like a 4.30 LS

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

Jan 28, 2008 | 06:33 PM

#5

trike1946

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Thank you very much. It is not too bad. I was thinking of buying it but did not want to even think about a 4.88. I am also looking at an 02 F350 7.3, with 25k. Can't decide. Thanks again.

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Jan 28, 2008 | 06:43 PM

#6

tawilson1152

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Joined: Dec 2003

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Thanks for the list. I just picked up a 2006 F250 with the 4N code and have been looking around for the decoder. 4.10LS. I like.

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2001, axle, code, e350

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