Rear backing plate problem?
Elder User
Joined: Jul 2012
Posts: 553
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From: Raleigh, NC
Sorry and thanks but can't do a pic right now. Backing plate looks to be in good shape other than a few minor grooves on 2 high spots. I did notice the self adjusting cable was loose. Made me wonder if wheel cylinder might be sticking a little. (Rebuilt or replace all 4 just over a year ago) I took it off and was in good shape except there was a little sludge/dirty fluid in it. Got it cleaned up and ready to go back on. I'am going to grind the minor in perfections off (Carefully) the 2 high spots and put back together. Then have to look at the other rear brake. I live in Atlanta Ga. (Doraville)
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Elder User
Joined: Oct 2011
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Cable is brand new, tight, high spots lub. good. Yeap still the same problem. Took off wheel and drum, drum came off easy not bound up. Everything inside still good-correct, cable still tight except drum is so hot it's smoking. This morning I looked at it again, e-brake was sticking a little so I disconnected it. Drove it, still same problem.
New brake spring kit was installed about a year ago. Oh yea grabbed the tire and tried to move, solid so I guess rear bearings are good.
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Elder User
Joined: Oct 2011
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Looks like I was wrong about the rear bearings. Doing system checks and when I put the lugs nuts on I notice the wheel seem to move. Pulled hard on the lug with lug wrench it moves almost a quarter inch. Are the rear bearings hard to do, something I can do at home like the front bearings.
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
Looks like I was wrong about the rear bearings. Doing system checks and when I put the lugs nuts on I notice the wheel seem to move. Pulled hard on the lug with lug wrench it moves almost a quarter inch. Are the rear bearings hard to do, something I can do at home like the front bearings.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Bearing is 1225 - collar is 1180 - seal is 1177
1968/72 F100's were available with two different 9" rear axles.
One has 28 spline axle shafts, t'other has a 9 3/8" ring gear, 31 spline axle shafts and Traction-Lok.
The bearing, collar and seal do not interchange!
1968/72 F100's were available with two different 9" rear axles.
One has 28 spline axle shafts, t'other has a 9 3/8" ring gear, 31 spline axle shafts and Traction-Lok.
The bearing, collar and seal do not interchange!
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Elder User
Joined: Oct 2011
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Thanks ND, been doing some research and guess I have to get under truck and read axle tag. Looks like I have to get the bearings pressed on unless someone has another method. Anyone know the cost for this? Been thinking I might just buy a 12 ton harbor freight press and do it myself.
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Elder User
Joined: Oct 2011
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Nope. As I recall you have a F100 9". Unless you have a press at home you can't do it. . There is a collar pressed on the shaft that has to come off before the bearing. Then after the bearing is replaced a collar has to be pressed back on. Anything foreign in your brake fluid?
Just kind of frustration chasing brake problem around when I now believe it is a bearing problem causing brake problem. Anyway got the brake system in good shape. I think the last few test drives really did the bearing in.
And yes sorry, f-100 1970 390 engine.
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Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
WEY-A IS:
3.25 RATIO. Non-locking 2 pinion. 9 3/8". "Large" wheel bearing (1 17/32" I.D. x 3 9/64" O.D). XL diff bearings.
Wheel bearing kit was Part number D8AZ1225C. Comes with 1225 bearing, 1180 collar,and 1177 seal.
Kinsel L/M shows 8. 800-816-2894
Dennis Carpenter FORD shows 5. 704-7865-8139
Green sales shows 18. 800-543-4959
Lanterman Ford shows 2. 620-672-5516
Parker =Ford shows 2. 605-297-4851
Van cleve Ford shows 2. 360-496-5999
Call around and see who will give you the best deal.
3.25 RATIO. Non-locking 2 pinion. 9 3/8". "Large" wheel bearing (1 17/32" I.D. x 3 9/64" O.D). XL diff bearings.
Wheel bearing kit was Part number D8AZ1225C. Comes with 1225 bearing, 1180 collar,and 1177 seal.
Kinsel L/M shows 8. 800-816-2894
Dennis Carpenter FORD shows 5. 704-7865-8139
Green sales shows 18. 800-543-4959
Lanterman Ford shows 2. 620-672-5516
Parker =Ford shows 2. 605-297-4851
Van cleve Ford shows 2. 360-496-5999
Call around and see who will give you the best deal.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
You sure this is the correct axle bearing for a 9 3/8" rear axle, which has a rear axle capacity of 3,600 lbs.
Take a look-see at DOTZ-1225-A & C9VY-1177-A .. both are listed for the 3,600 lb. rear axle.
D8AZ-1225-C is the large 9" bearing, replaced D8AZ-1225-A & B, C9AZ-1225-A, C1SZ-1225-A & B
Available from any autoparts store: Stamped with BIN (Bearing Industry Number): F-208-HL or FPP or 88128 or F208AKK
Take a look-see at DOTZ-1225-A & C9VY-1177-A .. both are listed for the 3,600 lb. rear axle.
D8AZ-1225-C is the large 9" bearing, replaced D8AZ-1225-A & B, C9AZ-1225-A, C1SZ-1225-A & B
Available from any autoparts store: Stamped with BIN (Bearing Industry Number): F-208-HL or FPP or 88128 or F208AKK
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
What is the application for WEY-A? I cannot find it in any catalog.
D8AZ-1225-C is the large 9" axle bearing, replaced D8AZ-1225-A & B, C9AZ-1225-A, C1SZ-1225-A & B
Available from any autoparts store: Stamped with BIN (Bearing Industry Number): F-208-HL or FPP or 88128 or F208AKK
D8AZ-1225-C is the large 9" axle bearing, replaced D8AZ-1225-A & B, C9AZ-1225-A, C1SZ-1225-A & B
Available from any autoparts store: Stamped with BIN (Bearing Industry Number): F-208-HL or FPP or 88128 or F208AKK
SOOOOO, C9AZ1177A + C9AZ1180A + F-208-HL 1225 equals D8AZ1225C.
Remember having to be a Sherlok Holmes back in those days Bill? LOL!
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
It's on my May 1972 T2 slide. Section 40.3. Page 2. Parts list 91. Shown as C9AZ1225A. (Replaced by D8AZ1225B or C). B9AZ1180B (Replaced by C9AZ1180A). C9AZ1177A.
SOOOOO, C9AZ1177A + C9AZ1180A + F-208-HL 1225 equals D8AZ1225C.
Remember having to be a Sherlok Holmes back in those days Bill? LOL!
SOOOOO, C9AZ1177A + C9AZ1180A + F-208-HL 1225 equals D8AZ1225C.
Remember having to be a Sherlok Holmes back in those days Bill? LOL!
C9AZ-1177-A was replaced by EOTZ-1S177-CA, this is 9" also.
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
Because of all this I'd REALLY like the OP to mic his axle bearing surface before buying anything.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Oh, I agree. I had caught that also. Made me nervous too. But in parts list 91 it list B9AZ1180B and the C9AZ1177A. From there I went to slide T1, section 12, page 13 for the 1180. Both B9AZ1180B and it's replacing C9AZ1180A are both listed as I.D. of 1 17/32" (3.3M axle). Then skipping to page 17 lists 1 17/32" I.D. equalling C9AZ1225A bearing. That bearing,collar,and seal all together equal D8AZ1225C. If your 1975 final issue slide shows different please correct me.
Because of all this I'd REALLY like the OP to mic his axle bearing surface before buying anything.
Because of all this I'd REALLY like the OP to mic his axle bearing surface before buying anything.