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Old January 29th, 2013, 04:25 PM   #1
kaotikblazer
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Default axle id help

hey yall gotta ?..i finally got my blazer back rolling and went to order my rear disc conversion stuff and went to double check that it was a d60 that i had gotten like i was told, ok i ran the bom number with no luck (603092-1) its on the axle tube and tag, checked fot the 60 stamp on and didnt find one only found an 80 on it. now if some one could plz help me identify this so i can get the swap done and back on the road id greatly apprecieate it..






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Old January 29th, 2013, 04:32 PM   #2
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Old January 29th, 2013, 04:35 PM   #3
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any one know what or where ican get a rear disc conversion brackets for it?
all ive seen are up to a 70 but no d80 brackets?
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Old January 29th, 2013, 04:42 PM   #4
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EGR Brakes
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Old January 29th, 2013, 04:54 PM   #5
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Originally Posted by kaotikblazer View Post
hey yall gotta ?..i finally got my blazer back rolling and went to order my rear disc conversion stuff and went to double check that it was a d60 that i had gotten like i was told, ok i ran the bom number with no luck (603092-1) its on the axle tube and tag, checked fot the 60 stamp on and didnt find one only found an 80 on it. now if some one could plz help me identify this so i can get the swap done and back on the road id greatly apprecieate it..

That's a picture of the Ford axle tag, not the BOM stamping.

Typically, only ambulances had the D80 axle. My guess is it's not a D80.
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Old January 29th, 2013, 05:12 PM   #6
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the bom is on the tag also.the 603092-1 under the c9ta-da stamp..the top left web has an 8 stamped on it..and the diff housing has and 80 stamped on it up above the yoke..ive had no luck gettin info anywhere keep getting mixed answers its an 80 cause its stmped 80, and thats not and 80 cause the diff cover is wrong so its proly a 60...any way to tell deffinatly.

Last edited by kaotikblazer; January 29th, 2013 at 05:16 PM.
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Old January 29th, 2013, 06:13 PM   #7
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after a few more inquires i believe its a d60 ff..guessing in the casting process it kinected the 60 together to make it look like an 8....
anybody have a opinion why it might not be an 60 ff
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Old January 29th, 2013, 06:37 PM   #8
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That number looks like a 60 to me. Axle tube thickness and diameter should tell the story. Also open it up D60 gears are quite smaller than D80 gears and D70 & 80 have a larger 35 spline axle shaft.

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Old January 29th, 2013, 06:43 PM   #9
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More info, D60 should have the 31 spline shafts and the D80 housing would stick out past the cover about an inch all the way around.
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Old January 29th, 2013, 06:45 PM   #10
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Google found this when I dropped the -1.

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603092-5 is a D-60 from a 1970 F-250 4x2. 3.73:1 gears with open diff. 16 spline shafts. Nothing special.....
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Old January 29th, 2013, 06:48 PM   #11
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its a full float 60.

i found a site called fordafication, and that number came up to a 1969 f250, 4.10, with 12x2.5 brakes. their dana numbers only go up to 1971 though.

the ford stamping numbers are usually readable. "normally" the c is the decade (60's), 9 is the ninth year of that decade (so 1969). the "t" is the "basic model design", it stands for "truck". meaning it was built for a truck. the "a" is the "engineering component", often it will tell ya basically what it is(electrical, engine, ect...). in this case it stands for "truck division".

often there is a space then 4 or 5 numbers, those would give you more info.
it would be followed by a space then a 1 to 3 digit code, for even more info.

large generic parts like axles fit so many different applications they usually skip the extra numbers. there was probably only 2 or 3 available axle options. axles are often visually id'ed easily.

thats my best guess?

pull the diff cover, get a pic inside. see if it has an open diff, or a power loc, or a detroit. also check what gear ratio it is(divide the ring gear teeth, by pinion teeth). sometime the ratio is stamped on the side of the ring gear, or the counts of both ring and pinion teeth are stamped there.
also pull the shafts, count the splines, and make sure they dont have any twist in the spline area.

good luck.

Last edited by joe_jeep; January 29th, 2013 at 06:54 PM.
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Old January 29th, 2013, 07:51 PM   #12
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joe jeep..that makes the most sense cause it is a 4.10 gear..thank yall for the info and all the help i really apprecieate it.
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Old January 30th, 2013, 07:33 AM   #13
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I would put something else back there besides the 16 spline version, didn't think it was that old.
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