Originally Posted by lostmy47
...
Inner bearings
-Original.
---Hyatt cup 11786Y 52Y OD 3.874
---Hyatt bearing D11786 46-B ID 2.256

Outer bearing
-Original
---Hyatt cup 11830Z 52-Y OD 3.542
---Hyatt bearing B11630. 46B ID 2.032

The bearing surfaces on the axle are
Inner 2.264
Outer 2.031

Ok, lets start over with that info.
Going back to the bearings I suggested:
Originally Posted by Grigg
...try this Timken catalog
http://www.timken.com/en-us/product..._Seal_Application_Catalog_1989_older.pdf
Page 125
...
Cone/Cup(inner) 388A-382
Cone/Cup(outer) 368S-362

Looking up those numbers to check dimensions here, with results below:
https://www.baumhydraulics.com/files/catalog/sec-r.pdf
Inner bearings
---Timken cup 382 OD 3.875"
---Timken cone 388A ID 2.265

Outer bearings
---Timken cup 362 OD 3.543"
---Timken cone 368S ID 2.031"

That all matches up with your original bearings and the spindle measurements.
Go back to your bearing supplier and see what they can do with the above Timken numbers, if necessary you could show them the listing for those numbers found by application in the Timken bearing and seal application catalog.

Looks like they did get Timken cup # 382 correct.

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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