1980 9" rear tag decoding
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Tuned
Joined: Jan 2001
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From: Elizabethtown, Ky.
1980 9" rear tag decoding
As stated I have an 1980 F-100 and it has a 9" rear and the tag stamping is like this.
DM-CL 0C05
75 9 S310B
When I googled decoding a 9" it actually brought me back to this site but in the 87' to 96' truck and some of this looks the same but some didn't so I thought maybe if I checked in this series of truck it might help. Thank you.
DM-CL 0C05
75 9 S310B
When I googled decoding a 9" it actually brought me back to this site but in the 87' to 96' truck and some of this looks the same but some didn't so I thought maybe if I checked in this series of truck it might help. Thank you.
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You are missing the first digits, which I think are "W" and "2".
<table style="border-collapse: collapse;" id="table1" border="1" cellSpacing="0" cellPadding="2" width="98%"><tbody><tr><td bgColor="#fae9d1" rowSpan="2">WDM-CL</td><td>Ford F100, F150 Pickup '79</td><td align="center">2.75</td><td align="center">9 in</td><td align="center">NL</td><td align="center">28</td><td align="center">-</td></tr><tr><td>Ford F100, F150 Pickup '80-'82</td><td align="center">2.75</td><td align="center">9 in</td><td align="center">NL</td><td align="center">31</td></tr></tbody></table>
<table style="border-collapse: collapse;" id="table1" border="1" cellSpacing="0" cellPadding="2" width="98%"><tbody><tr><td bgColor="#fae9d1" rowSpan="2">WDM-CL</td><td>Ford F100, F150 Pickup '79</td><td align="center">2.75</td><td align="center">9 in</td><td align="center">NL</td><td align="center">28</td><td align="center">-</td></tr><tr><td>Ford F100, F150 Pickup '80-'82</td><td align="center">2.75</td><td align="center">9 in</td><td align="center">NL</td><td align="center">31</td></tr></tbody></table>
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0C05 = Assembled March (C) 5, 1980 (0).
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Worst gears ever. Great for MPG's though!
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From: Lost
Not quite. The 2.47 ratio gears take top honors for lousy gearing.
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From: Virginia
That truck will buzz right along on the interstate at 70-75mph along with all the modern cars and trucks with that gear.
By the way it never fails. When I saw the "75" in your post I guessed it was a "2.75". They always punched the bolt hole into the first digit, wiping it out.
By the way it never fails. When I saw the "75" in your post I guessed it was a "2.75". They always punched the bolt hole into the first digit, wiping it out.
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OP's F100 is a 1980, AOD wasn't available in F100/150 until 1981...and then initially...only w/a 302.
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From: Lost
3.50 gears were, though.......
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Tuned
Joined: Jan 2001
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From: Elizabethtown, Ky.
Franklin2, thanks, I crawled back under and I couldn't find that W or the 2 mentioned earlier but I figured they were right anyways.
I have an AOD and a 302. Haven't decided if I'm going to keep it or change the motor and flip it.
I have an AOD and a 302. Haven't decided if I'm going to keep it or change the motor and flip it.
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From: Simi Valley, CA
and a 302. Haven't decided if I'm going to keep it or change the motor and flip it.AOD introduced in 1980 LTD/Grand Marquis/Town Car/Thunderbird Cougar/Mark VI & 1981 F100/150 302.
Here's the 1980 F100/350 & Bronco (U) A/T application chart. Where is the AOD? No see um.
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From: Owensboro, KY
It was just a thought. They already HAD the AOD in production, why not use it. Gearing was similar to a C4/C6. You'd have the advantage of a lower first gear ratio, and OD I would imagine would keep the revs in the same range as the higher gearing. An AOD with 2.75's though, that's a terrible idea.
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From: Owensboro, KY
Also, I seem to remember coming across a few '80 models with AOD's. Could have been swapped, sure, but I don't always trust the parts catalogs, they have been wrong before. Especially on the 1980 model year.