Id'ing Front & Rear Differential's
Thread Starter
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Senior User
Joined: Oct 2003
Posts: 161
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From: wisconsin
Can someone tell what kind of rearend and front axle are on my 78 f150
I am trying to see what the gear ratio of my front and rear axles are and wht type I have on my Truck. The only thing I have for you is that the axle code on my door says H2 J if that helps any.
Post Fiend
Joined: Jan 2003
Posts: 10,323
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From: Montana Territory
You have a Famous Ford 9" rear end, and its probably limited slip, with a 4.10 gearing, and the front is a Dana 44 open 4.09 gearing.
there are casting codes on the Dana housing, and a tag on the 9". you can post those here and soemone will be able to decode them for you.
Most VIN codes aren't reliable, since a lot of these trucks get mixed and matched over the years.
*edit
Your data plate says it is a 3.50 geared limited slip 3750lb axle. Only the tags will tell the truth.
there are casting codes on the Dana housing, and a tag on the 9". you can post those here and soemone will be able to decode them for you.
Most VIN codes aren't reliable, since a lot of these trucks get mixed and matched over the years.
*edit
Your data plate says it is a 3.50 geared limited slip 3750lb axle. Only the tags will tell the truth.
Last edited by Mattsbox99; Oct 19, 2003 at 12:49 AM.
Thread Starter
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Senior User
Joined: Oct 2003
Posts: 161
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From: wisconsin
Thanks again but does anyone know the J is for the front axle. The tags are not on the axle anywhere.
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Post Fiend
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From: Montana Territory
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Tuned
Joined: Aug 2002
Posts: 299
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hey fellas just read this , its about rear ends. so i figuered you might know this, ts pretty dumb question but i'm a beginer. my rear end says 60 and some letters and my front end says 44 then some letters on the lower right hand side of the differental of each. does this mean my truck has a dana 60 in the rear and a 44 in the front?? and its a 79 f250 4x4
thanks
thanks
