Alright gents, my 47 pickup has a ford 9" in the back of it and has for as long as its been in my possession. My issue i have, granted its not a m***ive issue as i do know its indeed a 9", i have no clue what the axle came out of i would like to know too, maybe it might help some other people with early ford trucks too since it seems like a damn near straight bolt in upgrade. Here's what i do know though Its an early 9" (smooth back cover with a fill plug in it, no drain Its a big bearing It has the truck lug stud patter (5x5.5) The diff is offset toward the p***enger side a bit 28 spline axles 3.55 gears with an open diff The pinion angle is about 10.5-11° And the width flange to flange is about 62" I can't seem to find much info on that sort of stuff other than ID'ing it as a 9". My best guess is its a bronco or old 4wd f100 axle with the exteme pinion angle. Oh also it doesn't have an id tag on it either, that would make things too easy. Thanks in advance.
pics and any casting numbers...like he said. And if you have the center out, pic of the stampings on the ring gear
now that i have seen how awful those photos look on a real computer and not a cell phone i went back out and acutally wrote down all the codes off the 3rd member and bearing support they are 23 4663A 5F7 05aw 40 5F12 also i don't have the 3rd member out of it so idk what it might have for codes on the inside.
Isn't that a 8 inch?Can't see in the pictures,can the lower 3 member bolt be removed with socket or does it need a combination wrench?
maybe you could tell us what casting letters/numbers are on the center section, and the pinion support. They usually say something like C7AW..... and the first two characters will give you an idea of how old it could be. For example, C means 1960s decade, 7 means 1967. So a part with this "engineering number" cannot be older than 1967. It could be newer. also, there are casting date codes on many of the parts. The 5 F 12 number means that it was cast on June 12th, 19x5. That could be 1965, or 1975, or 1985. If the engineering number on that part is from 1967, then you know it's cast in 1975 or 85. With your updated post, I'd guess the center is out of a 1965 year car or truck. And....it's highly likely that someone changed the center section, so you might have a housing that's a different year than the center section.
you need a wrench to remove the bottom bolts, pretty confident its a 9". the 1st 4 numbers i listed are on the pinion carrier the other 2 are on the 3rd member case. definitely wouldn't surprise me if its been changed, if it hadn't been then i'd think the actual tag would still be on it
Yep, looks like late 65 or early 66 pickup with that date code, lug pattern and the single rib case. The casting numbers represent the year model and vehicle line the part was designed for, so a C6 was designed for the 66 model year, with actual production starting in 65. The third digit, a letter, represents the vehicle line it was designed for- actually the line that paid for the engineering to be done- A is full-size Ford, O is Fairlane/ mid size, M is Mercury, Z Mustang, T truck etc. That basic casting could be used in any vehicle line, but that line paid for the engineering. The casting numbers would not change unless there was a change in the actual casting, so you could have a C0AE casting in a 68 vehicle, if the casting was never revised. The second part of the casting number defined what kind of part, 6015 is an engine block, 9425 is an intake manifold, 6090 a head, 6250 is a cam etc. The suffix, usually a letter, tells exactly which casting it is, can be a 260, 390, 427, whatever until the suffix- so very important. A C4AE-6090-G is a plane-jane 352/390 head designed for the 64 model year for a full-size Ford, while a C4AE-6090-F is a 427 High Riser head, with a very different value
Here's a few more photos since today i stopped being a lazy ***hole and actually pulled it out of the truck like I've been meaning to
it's a 9". Two things...the shape of the housing is the correct oval, not the more square shape of an 8".not to mention the ribs And no way could you get a deep socket on the lower nut holding the center into the housing.
Well it is too wide to be an early Bronco as they are = 1966-1977 Bronco 58 inches WMS to WMS 1957-1972 Ford F-100 Pickup is 61.25 WMS to WMS 1973-1986 Ford F-150 Pickup 65.25 WMS to WMS Guys used to use the rear out of a a certain model Ford van that had long and short axles and shorten the long side to run two short axles but it is so long ago that I knew anyone doing it I forget the details and it may have been friends running dirt track doing it. I'm thinking that wrecking yards in the area sold the Van rear axles for a lot less than they asked for car or pickup rear axles.
It's a 9", my guess that the housing is a late '50s/early 60s truck, possibly 4WD. The early 9" housings had more pronounced 'flats' top and bottom compared to the later housings. If it has a drain plug in the housing, that dates it to '57-58 as those disappeared in '59. Ford went back and forth on the fill plug, you could find either type depending on application, they finally seemed to settle on case fill instead of housing fill in the late '60s at least on the cars. Housing fill was more common on trucks for some reason. Ray is correct that you could swap 8" and 9" 28 spline axles, but only if they were small axle bearing as the 8" never came with big bearings. You could use big bearing axles in a 8" but that would require changing the housing ends.
I’m no Ford truck expert but it looks a lot like the rear end I put in my ‘55 F100. The spring pads on top (looks like factory welds) would lead me to believe it’s definitely a truck housing. The shock brackets look like late ‘50s to middle ’60s. Hard to pin down the exact year but if you’re trying to figure out what to tell the counterman at the local parts house, tell ‘em 1965 and bring your old parts to match them up. At least, that’s what I did.
I had an early Ford 9 inch rear and had no idea what it was out of. I took the wheel cylinder and brake shoe in to our old school parts store when I rebuit it and after researching and measuring these brake parts was able to tell me what years and vehicles mine came from!
If you pull the axles and they are the same length, it is out of of pickup. It will also have the pinion offset to the p*** side 4-3/8". Ford mounted the engine offset as well, to match the pinion centerline. I shorten the driver side 4-3/8" and re-spline the axle, makes a good axle for early hotrods.
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