I hope so. Took the better part of my lunch hour.

 

Thanks for the effort anyway. I appreciate it.

'Torino' style bearing/flange isn't a Ford-speak, master parts catalog, politically correct term for that style bearing/flange arrangement. It's mainly a common gearhead term, sort of like saying 'Bumpside' to describe a '67-'72 truck body style instead of having to say, "1967-1972 body style." Anyone that knows the term 'Bumpside' immediately knows what body series you're talking about, when that term is used. --same with the use of the term 'Torino flange' or 'Torino large bearing.'

The 'Torino' style flange is a gray area for me, as it relates in the 9-inch rear ends. I don't know exactly when it came into production but, I'm guessing around 1974 (possibly a little later) and obviously, it must have first been used in the Torinos with a 9-inch rear to get that slang name description to differentiate it from the old large style axle bearing flange pattern.

However, at some point, that 'Torino' style flange was used on some of the truck 9-inch rear ends --I don't know if it occurred in the Dentsides but, it was definitely in use on at least some of the Bullnose trucks/Broncos. --I know it was not in use on the Bumpside trucks though. That would have been too far back.

I don't know if the 3/8"-24 backing plate bolts is a direct correlation to indicating the rear end having a 'Torino' style housing flange but, that's what I'm trying to figure out and when it first appeared in the trucks.

A regular old style 9-inch large axle bearing flange pattern is 3.500" across by 2.375" vertically.

The newer 'Torino' style 9-inch large axle bearing flange pattern is 3.5625" x 2.00"

Both old style Ford large bearing and the 'Torino' style large bearing end flange bore is 3.150", where the axle bearing seats into the housing tube end flange bore.

The old style large bearing flange pattern is the second one shown in the diagram. The newer style ('Torino') large bearing flange pattern is the third one shown in the diagram.

 

No listings for the plate part number D3OZ4020A in my 73/79 truck (including Econoline) slide. there is only one for the D3OZ1001A gasket.
74/79 E100/150. There are no listings for a gasket for a Dent F150 in this slide. Only F100 so the listings for the gasket must be FUBARed. So it appears to me the 1st year for the D3OZ4020A and the answer to your question would be the 1980 tag number I listed above. I can not guarantee this though. Looking at all these splattered listings in the rear ends it looks like even Ford was confused.

 

well thanks for your time guys .
can't you do this "while"working .
I have dual screens and control w short cut on my scroll wheel , so touch of it and open browser instant closed .

 

I just ordered" How to rebuild the 8.8 and 9 inch " by Joseph Palazzolo
good book ?

 

Don't know about the book you mention. I've rebuilt several 9-inch 3rd members. I have a 9-inch rebuild video from Bad Shoe Productions (Kenneth Collins, Ford Master Mechanic) but, I bought it way after I had rebuilt the other 3rd members. --actually, it was a two-fer deal; buy the 9-inch rear end video, get another video free. --I also got the 8.8" rebuild video he produced.

Bad Shoe Productions How To Video Series - Ford Transmissions & Rears

 

After 3 hours of searching information on the Torino style large bearing scenario, I didn't come up with a definitive answer, however, I did come up with some information that may support my theory that a Ford truck (or full-sized Bronco) that has a 9-inch rear end with 3/8" backing plate bolts would have the later model Torino flange pattern, as opposed to the old style Ford large bearing with the 1/2" backing plate bolts.

The new style Torino flange pattern came out in 1973 on the Torinos and some other related Ford passenger cars.

I found some information for a 1979 Ford 1/2 ton truck that listed having either 1/2" or 3/8" backing plate bolts.

This is a 1984 Bronco 9-inch rear end housing with the Torino style large axle bearing housing flanges. Notice the smaller bolt holes and that they are about 2" apart (instead of 2-3/8"). Also note the taper of the axle tube between the leaf spring perch and the end flange. I've never seen an old style large bearing truck 9-inch housing with this taper.






Explorer rear disc brakes (5-on-4.5" lug pattern) on the '84 Bronco 9-inch rear end housing.





Months back, I was looking for an '80-'83 Bullnose F100 with a 9-inch rear that has the 5-on-4.5" lug pattern (as opposed to one with the 5-on-5.5" pattern). I didn't find one but, I did find a Bullnose with a 9-inch rear with a 5-on-5.5" lug pattern. --two things I noticed on that rear end, now that I think back on it, I think it had the tapered housing tubes at the ends but, I distinctly remember noticing it had 3/8" backing plate bolts. Hmmmm.....

I'm about to have two weeks off from work very soon. I really need to go back to the wrecking yard, while I'm off, and check that Bullnose 9-inch out again. ....could be a nice little gem that, out of ignorance, I overlooked the first time.

I know the quick way for me to determine if it has the Torino flanges on it will be to measure the vertical distance between the backing plate bolts. If the measurement is 2", then I'll have a winner.

 

Oh I do every day on here Mike. But that is where and how I accidentally over look things every once in a while. Then ND corrects me. My job is answering Wholesale phones pricing and selling Ford parts wholesale. When I pick a thread here to help out on I keep getting interrupted by my phone. It is easy for a human being to forget what they've already been,researched,looked,read,etc. There are times you have to scan the whole page on the old books to make sure Ford didn't add something in out of order. Their stuff was hardly ever listed in order. Which is why I chose to jump on Steve's question during my lunch. Wolfed down a double cheeseburger and jumped on it. I knew I'd be all over the slides. I know he and most everybody in the Kingdom here would do the same for me.

 

So this tread got me jumping into the rear end because as you can see it has a bad leak!! Ultraranger or any of you knowledgeably gentleman I have a 1970 F100 and the rear has no tag on it. Here is some pictures of it if you can tell anything about what I have. From reading what you wrote above I know I don't have a "N" case and from the outside of my axles I see two circles which I will guess means it 28 spline axles. If you see something that can help out or advice how to fix my leak I greatly appreciate it. Before anyone else tells me yes I noticed that I have a leak on the drum on the passenger side rear that means to me stop everything else that I am doing and do the front disc swap and rebuild the drums before I drive it again. Junkyard here I come this weekend lol

 

getting PAID to look up Ford stuff !! oh my dream job !!

 

Yessirr, ya got churself a good ol'pinion seal leak there.

Unfortunately, I don't have X-ray vision and can't see the number of ring gear and driving pinion teeth to know what the ratio is but, I can tell you the 3rd member isn't stock to your truck so, there's no telling what the ratio is.

The 3rd member in your truck is from a Ford car --notice the cast-iron hood sticking out over the driving pinion/companion flange. Truck 3rd members did not have that feature.

Only sure way to know what ratio you have is to pull the 3rd member and start counting teeth.

 

I noticed the hood part. Should I be looking to completely ditch that and find a truck 3rd member? From what I read that you wrote above. Correct me if I am wrong, but if I find a 9 3/8 read and take the axles I can use a 3rd member from a dent and have 31 spline axles and this would be basically a plug and play for me? Thank you for the help and I will see what I can do to get you that xray vision

 

I see a couple gaskets seeping also. Usually, but not always, worn and loose pinion bearings is what makes the pinion seal loose it's seal. They allow the pinion shaft to walk around just enough to wear out the pinion seal. Or at least loose it's seal. Grab on to the driveshaft back there and try to move it all around. See if you can get that pinion shaft to move around showing bad bearings. When you pull that 3rd member to count the teeth you might end up swapping out new bearings.
BTW, the same thing applies to the wheel bearings.

 

I will try that when I get home from work, but I can tell you when I was changing out my wheels and tires that with one tire on the ground the when you moved the wheel in the air you would hear a clunk sound and the right (passenger side) moved more then the left (driver side) I figured that sound was the bearing or maybe the U joints? Is that what you mean? I am curious to see what gears it has now. Do you think I should ditch the car 9 inch 3rd member that Ultraranger confirmed I have?

 

Not necessarily because it's a car 3rd member. Depends on what you use the truck for and what's inside. Over the years of the 9" they had different bearings. Example of what I'm thinking, the differential bearings. Over the years there were Small,Medium,Slim Line,Large and Extra Large. If it's got medium bearings and you haul a lot or have a built motor that's tough on drivelines then I'd say find another. And vise/versa. If it's got large and you never tow or haul than I'd say no problem. 28 spline or 32 spline depending on how you drive it. ETC.


Edit. Finding another one and rebuilding it with new bearings and the gear ratio of choice ahead of time keeps the truck down and off the road a shorter time. It's prolly got 28 spline axles all right. You might yank one out real fast just to see what you got if you're going to go searching. You can stab it right back and keep the truck on the road until totally ready.