Front axle codes vs. Rear axle codes

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Feb 26, 2024 | 03:30 PM

donsimpson

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Front axle codes vs. Rear axle codes

I'm struggling a bit to find codes for my front axle.. I see a lot of info about rears but not much about fronts. Are they the same codes? Would someone post a list or link?

FYI. 2001 Super Duty, 5.4l auto 4x4. 3.73 open diff.Dana 50 front, full floating rear.

Regards, Don

Feb 26, 2024 | 08:48 PM

99f350sd

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From: Lyndonville, Vermont

What is it you need Looks like you have everything..

Feb 26, 2024 | 10:20 PM

donsimpson

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Quote:

Originally Posted by 99f350sd

What is it you need Looks like you have everything..

Sorry, I want to know what the codes are to swap the 50 for a 60. For example, I can find that for rears the C1 and 31 are 3.73:1 gear ratio, limited slip and non ls respectively. I would like to know if these codes apply to front and rear. Thanks

Feb 26, 2024 | 10:28 PM

99f350sd

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From: Lyndonville, Vermont

How about the super duty info at top of page..
I snapped my left front axle last fall. Was thinking about going d60 but I'm 67 the repair will probably outlive me.
I have Detroits in both ends. Prob didn't help.

Feb 27, 2024 | 08:30 AM

redford

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Yes, the front and rear ratios match. The front differential only came in an open configuration. Your rear differential is a Sterling 10.5.

Only the early 1999 trucks came from the factory with a D50 front differential. The late 1999 and newer trucks came with a Dana 60.

Feb 27, 2024 | 08:58 PM

99f350sd

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The D50 was changed to D60 in 2002 year..If I remember correctly. I think the excursion had it till 2005.

Mar 2, 2024 | 08:48 AM

donsimpson

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Quote:

Originally Posted by redford

I understand that the front and rear gear ratios match. So if the gear ratio is part of the code, then a C1 code applies to front and rear I'm good. Thank you for that info. Regarding what years have the d50, my 01 has a d50 installed. I think its factory.