Can anyone tell by these pictures which axle this is? Axle code on warranty tag is omitted.

 

F10 = F100 2WD

Y = 352 2V

R = San Jose CA Assembly Plant.

788742 = 1966, assembled December 1965.

129" Wheelbase.

8 = Springtime Yellow.

F100 2WD, 5,000 lbs. GVWR

D81: D = Medium Beige Crush Vinyl & Medium Beige Cody Pattern Woven Plastic / 81 = 81B Custom Cab.

B = Borg Warner T-85N 3 Speed Manual with Overdrive.

AXLE: Blank ~ Domestic Special Order.

5,000 lbs. Gross Vehicle Weight Rating.

172 net HP @ 4,000 RPM

710216:

71 = Los Angeles (SoCal) Ford District Sales Office, where the original selling dealer ordered the truck from.

0216 = Domestic Special Order number, truck special ordered by original purchaser, not "bought off the lot."
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Ford 9" rear axle standard equipment, Dana 44, Dana 60.2, Dana 60.3 rear axles, all with Limited Slip, all with inspection covers, all with 5 lug wheels, optional RPO's (Regular Production Orders).

Originally, there was a rear axle ID tag located under one of the bolts that retains the inspection cover to the housing. Cover is so caked with grease, I cannot see it.

It might be there...might not be, as these tags are usually missing today, which is (sadly) a common occurrence. People forgot to reinstall them when they put the covers back on.

No AXLE code stamped on the Warranty Plate: Truck ordered special by original purchaser, who requested a non standard rear axle not installed in F100's.

If a part failed, dealer contacted FoMoCo with 6 digit DSO, they look up the order number, pass the info back to the dealer what type of axle it is and where the parts can be found.

FoMoCo THREW AWAY the DSO records decades ago, so there's is no way to discover what rear axle it was ordered with.

It might be a Dana 60, normally only installed in F250's, but F250's have 8 lug wheels on a 6.50" bolt circle, while all 1953/79 F100's, some 1980/83 F100's have 5 lug wheels on a 5.50" bolt circle.

If you could get the numbers that are stamped on the ring and pinion gears, it might be possible to ID it. Ditto if the ID tag is still present.

 

Thanks ND. Going to pull the cover after work today. Hopefully I find some numbers somewhere. Thanks again.

 

If you happen to have a Summitt Racing catalog, they have a page in it that diagrams a huge assortment of different brand differentials by gasket appearance. Just match up the number of bolt holes and shape and it will tell you what it is - maybe. Good luck!

 

Ok, so I spent a couple hours tonight pulling and cleaning the cover, this is what I discovered.







Also saw some numbers stamped on ring gear, they are: 8 29 65 Dana 30360 A3D10 41-10
Any help would be appreciated. Thanks

 

C6TA-AM = Spicer/Dana 60.3 / 4.10-1 / Limited Slip / Rear Axle Parts List # 173.

Left (upper): Rear Axle ID Chart / Right: scroll down to Parts List #173

Left (lower): Parts List #173 continued.

 

Do you actually realize how lucky you are to find those tags...? Most times those things are LONG GONE...

 

...Also known as the Dana 60.2, the 1/2 ton version of the Dana 60. With limited slip, lower gearing, 5 on 5 1/2" lug pattern, ease of adaptation to other vehicles and strength, this axle is popular with the 4x4 crowd.

 

Yeah, I was pretty excited they were still there. Knew it was going to make life a little easier. Was wondering if the cover had ever been pulled off, the gasket was a old cork gasket that looked like it might have been 47 years old.

 

Dana 60.2 (1963/66 F100) not the same as Dana 60.3 (1966/69 F100).

Left (upper) Dana 60.2 - Parts List #168 / Right & Left (lower) Dana 60.3 - Parts List #173.

 

A 352 turning 4.10s, that sumbeach should pull like a locomotive, and get every bit of 5-6 mpg.



John

 

The old 352 was long gone when I bought the truck for my son. Was replaced with a 94ish 351W and an AOD. Haven't figured out what MPG I'm getting, cuz the PO didn't install speedo correctly, best guess would be 12-14 though. But she still gets up and goes! What axle swap do you guys suggest for better MPG? I live in SoCal but am driving her to Missouri next month for my sons birthday.

 

A 3.50 would be a good choice for the W. Not gonna be as strong on take off but nicer on the road.



John

 

Thanks John. What donor could I find that set in? Would like to find a direct replacement spline type so I'm not running into all kinds of problems. I read on another thread about conversion u joints and all that, trying to avoid that headache if at all possible.

 

Also presently running 31" tires, not sure if that's gonna make a huge difference?