Axle id decoder
Senior User
Joined: Oct 2005
Posts: 146
Likes: 2
From: Wichita Falls TX
The only Ford's I know that used that Ratio (3.07)
were Granada/Monarchs and LTD's. My 75 LTD
had that ratio. Yours is a 1978 or later model though.
And the T in the part number stands for Truck line.
It would be a 9 inch though. That's all that really
matters.
were Granada/Monarchs and LTD's. My 75 LTD
had that ratio. Yours is a 1978 or later model though.
And the T in the part number stands for Truck line.
It would be a 9 inch though. That's all that really
matters.
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
It would be a DANA 61 full floater with that ratio. I have one just like it. AFAIK it shares many parts with the DANA 60 with 4:10 and lower ratios but it has a heavy case like a DANA 70. Ford called it their mileage maker axle and used it under E/F/250/350 2WD vehicles. It was frequently found behind the 400 or 460. You can search for more info. It is a very good axle.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
Originally Posted by 69BigblockFord
Is there an axle id decoder online? I am trying to find out what rear end I have. The code on the id is 3.07 D8TA A1A 603899-1.... Please help. Thanks,
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Fleet Mechanic
Joined: Mar 2004
Posts: 1,398
Likes: 17
From: Hesperia, CA
Originally Posted by NumberDummy
It's actually = D8TA-AFA Dana 61-1 / Full Float / 3.07-1
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Since yours is an F-250, it never came with dual rear wheels. If it is an F-350 with an F-250 badge on it, then is likely did come with dual rear wheels.
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