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05-03-2021, 11:13 AM | #1 |
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Join Date: Mar 2020
Posts: 150
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Transmission bearings
I replaced the 7118 and 7121 bearings in my transmission with the current production bearings from a major parts supplier. They were the Chinese bearings. 1,200 miles later they failed. Looking for a source to get good bearings that will last. Any help will be appreciated.
Thanks! |
05-03-2021, 11:14 AM | #2 |
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Location: brentwood, ca
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Re: Transmission bearings
Brattons
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05-03-2021, 11:26 AM | #3 |
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Join Date: Jul 2010
Location: Aiken, South Carolina
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Re: Transmission bearings
As far as I know, the only thing available from most of the suppliers are still the junk bearings. However, a couple of months ago I purchased the 7121 bearings from, of all places, MAC's and they were the good 7121 bearings. I have no idea if they still have them but they might. The shorter bearing is hard to find, but you might call Steve Becker at Bert's Model A in Denver. He might even have some good used ones which are far preferable to the junk currently available.
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05-03-2021, 11:53 AM | #4 | |
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Location: Redondo Beach, CA
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Re: Transmission bearings
Quote:
Last edited by Y-Blockhead; 05-04-2021 at 10:59 AM. |
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05-03-2021, 12:18 PM | #5 |
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Location: Southern California
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Re: Transmission bearings
Many of the suppliers were not even aware a switch was made. Those that are aware say that is all that is available. This is probably the greatest dis-service ever done to the Model A kingdom. It is not a question of they may fail, they will fail. I don't think anyone is making a quality bearing. See the attached.
Tom Endy |
05-03-2021, 03:18 PM | #6 |
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Re: Transmission bearings
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I'm hunting for cross numbers for these and not having a lot of success. |
05-03-2021, 03:46 PM | #7 | |
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Location: Florida Panhandle
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Re: Transmission bearings
Quote:
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05-03-2021, 03:47 PM | #8 |
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Join Date: Apr 2018
Location: Mebane NC
Posts: 2,381
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Re: Transmission bearings
I'd be willing to take a crack at ID'ing substitute possibilities if someone can post the specs.
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05-03-2021, 05:01 PM | #9 |
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Join Date: Mar 2020
Posts: 150
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Re: Transmission bearings
Mullet,
It was noise in the tranny. Came in all of a sudden. Rattled it home and into the shop. Pulling it tomorrow night (I hope). |
05-03-2021, 05:16 PM | #10 |
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Join Date: Apr 2021
Location: St. Augustine, Fl.
Posts: 437
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Re: Transmission bearings
Thanks for all this info on the trans bearings. I was going to rebuild my spare transmission
this coming month. I will see if I can cross these numbers for good bearings. Thanks again, John |
05-03-2021, 05:58 PM | #11 |
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Re: Transmission bearings
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05-04-2021, 09:41 AM | #12 |
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Join Date: May 2010
Location: Liberty, KY
Posts: 908
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Re: Transmission bearings
A 1947 cross reference I have says the RA-135 Bower is the same as B7118 along with 99026 Hyatt, the B7121 is RA-136 Bower and 99028 Hyatt. Us V8 guys are having the same problem! I'm putting together two transmissions and using nice used bearings even though it goes against everything I learned over the years! Hope this helps, Dale.
Last edited by deuce5wndw; 05-04-2021 at 09:54 AM. |
05-04-2021, 09:42 AM | #13 |
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Join Date: May 2010
Location: Liberty, KY
Posts: 908
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Re: Transmission bearings
A 1947 cross reference I have says the RA-135 Bower is the same as B7118 along with 99026 Hyatt, the B7121 is RA-136 Bower and 99028 Hyatt. Us V8 guys are having the same problem! I'm putting together two transmissions and using nice used bearings even though it goes against everything I learned over the years! Hope this helps, Dale.
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05-04-2021, 11:02 AM | #14 |
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Join Date: May 2010
Location: new britain,ct 06052
Posts: 9,393
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Re: Transmission bearings
Try Van Pelt or Michael at 3rd Gen Auto.
Paul in CT |
05-04-2021, 11:43 AM | #15 |
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Join Date: Mar 2020
Posts: 150
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Re: Transmission bearings
Please let me know what you find. I'm having difficulty getting some that are American made.
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05-04-2021, 07:48 PM | #16 |
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Location: Australia
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Re: Transmission bearings
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05-04-2021, 09:40 PM | #17 | |
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Join Date: Apr 2021
Location: St. Augustine, Fl.
Posts: 437
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Re: Transmission bearings
Quote:
8" & 9" rear ends. They have always been quality bearings. Thanks, John Hope they have not moved off shore!! |
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05-04-2021, 09:50 PM | #18 | |
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Join Date: Apr 2018
Location: Mebane NC
Posts: 2,381
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Re: Transmission bearings
There was another post awhile back that listed some different interchange numbers:
https://www.fordbarn.com/forum/showp...7&postcount=14 Quote:
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05-04-2021, 09:56 PM | #19 |
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Join Date: May 2012
Location: Queensland, Australia
Posts: 10,401
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Re: Transmission bearings
Model A Ford Transmission Roller Bearings |
05-04-2021, 10:26 PM | #20 |
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Join Date: Apr 2018
Location: Mebane NC
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Re: Transmission bearings
This site lists a ton of cross-references for A7118:
https://www.yoyopart.com/oem/1136319...ml#interchange And for A7121: http://www.kakapart.com/oem/partscro...r-j241256.html Maybe one of these is available. Here's a vendor selling a part that interchanges with A7118: https://wellertruck.com/inventory/pa...earing/bearing Here's someone on eBay selling 2 units that interchange with A7121: https://www.ebay.com/itm/BCA-Bower-J...-/233596345459 Last edited by alexiskai; 05-04-2021 at 10:41 PM. |
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