Missing Axle codes

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Aug 25, 2003 | 02:35 PM

freefam

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Joined: Mar 2003

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Missing Axle codes

thanks for the post on vin decipher, but now I can't find the axle code. Not on the door sticker. axle tag says:
S 409 F
L73 10 5 9J22

Truck is 4x, , PSD, LWB, CS (I think), SC, F250
Who knows?
Thanks

Aug 25, 2003 | 03:50 PM

RRMike

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Joined: Feb 2003

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From: Roseburg OR.

Missing Axle codes

The L73 10 5 9J22 should be 3L73 (3.73:1 Limited slip) 10 5 (10.5 inch ring gear Visteon rear axle). I think you're missing the first number on the bottom line.

In fact if the truck is a superduty I know that's what it is (except for the limited slip) because that's the only axle ratio the PSD's are offered with.

Aug 25, 2003 | 04:40 PM

freefam

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Missing Axle codes

Thanks, I figured out by jacking up the truck. It is LS3.73, The first owner said it was not, but he was wrong-- Good for me!

Aug 25, 2003 | 04:56 PM

johnsdiesel

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Joined: Aug 2002

Posts: 5,324

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From: Denton,TX

Missing Axle codes

Quote:

Originally posted by RRMike

In fact if the truck is a superduty I know that's what it is (except for the limited slip) because that's the only axle ratio the PSD's are offered with.

Unless you have a dually F350 and then you can get either the 3.73 or the 4.10.

Aug 25, 2003 | 05:34 PM

RRMike

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Joined: Feb 2003

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From: Roseburg OR.

Missing Axle codes

Quote:

Originally posted by johnsdiesel
Unless you have a dually F350 and then you can get either the 3.73 or the 4.10.

But he doesn't have a dually. He has the SRW 10.5 which is only available with 3.73 in a PSD

I was only talking about his truck specifically. That's why I mention Superduty by name because I don't know if the PSD vans are offered in different ratios.

Last edited by RRMike; Aug 25, 2003 at 05:40 PM.

Aug 25, 2003 | 09:04 PM

johnsdiesel

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From: Denton,TX

Missing Axle codes

One of the things I like about my 97 is that it came with a 4.10.

Aug 26, 2003 | 10:16 AM

backnblack00

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Joined: Apr 2003

Posts: 35

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From: Central NY and Tug Hill Plateau

Missing Axle codes

My truck has a blank space under AXL on the pillar as well. Looks like it was printed that way from the factory. However I know my vehicle had been modified before I bought it because the numbers on the diff tags read that I do not have posi. and I sure DO have posi. Also I am pretty sure that 3.73 was not the only axle ratio available on superduty f-250s from the factory, now this may vary depending on the year. The Ford truck FAQ at the top of this forum has a link to a calculator where you can get an idea of your gear ratio by inputting your rpms at 60 mph ( maybe tire size too).