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Bill or Dennis little help on this code?

1985 Ford F-150

1985 Ford F-150

Country Boys Can Survive
7,816
307
Tooele, Utah
Got to lookin at the codes on the door tag of my new truck and the axle code is 39. I have a set of shop manuals for 85 but 39 aint in em. Trucks an 86 F-250 HD 4x4 with a 460. I believe its a full floater sterling but when I was lookin at the brake diagrams they dont show any for a full floater sterling just full floater Dana or semi float sterling. Any help would be greatly appreciated.
 
Mil1ion

Mil1ion

Still Da Man
6,277
221
Just Above a Huge Gas Source
39 or 89 ?

In 1986 code 39 = 3.55:1 6250 lbs Dana 61
 
Last edited:
1985 Ford F-150

1985 Ford F-150

Country Boys Can Survive
7,816
307
Tooele, Utah
Thanks Dennis it is 39 but it aint a Dana axle heres what it looks like.
020-1.jpg

Theres no drain plug in the cover its in the housing.
021-1.jpg

It has the bigger studs on it but im wonderin if it mightve been a dually axle considerin how long the studs are and how long the hub is.
023-1.jpg

It does have a lock right locker in the rear so maybe the old rear end blew up and they swapped this one in?
 
Mil1ion

Mil1ion

Still Da Man
6,277
221
Just Above a Huge Gas Source
Last edited:
1985 Ford F-150

1985 Ford F-150

Country Boys Can Survive
7,816
307
Tooele, Utah
Guess I jumped the gun cause I got that axle guide saved in my favorites. After drivin it more it does have highway gears in it and the ratios are matched. Its also a goat four wheelin and does awesome donuts.
 

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