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Joined: Jun 2018
Posts: 19
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'Bolter
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Going to need some wheel bearings for my truck. From what I've found the original ND 909546 and ND 909545 are no longer produced but that there are replacements.

Is it correct that National B44 and B45 are exact replacements for the originals? And where would be a good source for them? Thanks!

Joined: Sep 2009
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Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Joined: Sep 2009
Posts: 4,392
Oswald - I did some searching of Chevy Master Parts books and online web sources on your wheel bearing question. The ND (New Departure) numbers you posted are only a part of the complete 3 piece bearing sets. The correct GM#s for the bearings you seek are:

Front Inner: GM# 909046 (made up of 1 each of ND909726, ND909546 and ND 909626)*

Front Outer: GM# 909045 (made up of 1 each of ND909545, ND909625 and ND909725)**

The correct cross refernced part numbers are:

* Cross references to complete bearing sets: Part# B46 for brands National, BCA, L&S and probably others. Also Part# WBB46 for brand WJB.

** Cross references to complete bearing sets: Part# B45 for brands National, BCA, and L&S and probably others.

If you search ebay, you will find some of these replacement brand bearings available. Some at fairly reasonable prices, like these WBB46 inner bearing sets. Not a lot, but some.

If you want, you can also find them at some of our regular well known supporting vendors like Jim Carter. They carry Front Inner bearings sets as Part# ME745 and Front Outer Bearing sets as Part# ME746.

Hope this helps you out. wink


~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
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Thanks for doing the leg work on that, I appreciate it. I'm new to these old trucks so a little help is sometimes needed. So if you don't mind clarifying, these bearings would work, right?

Inner bearing

Outer bearing

Thanks again!

Joined: Sep 2009
Posts: 4,392
Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Joined: Sep 2009
Posts: 4,392
Yes to both of those. However, the Outer bearing you listed looks to be only a quantity of "1". You need a 2nd one if you are replacing both front wheel sets. This other manufacturer "B45" outer bearing would fill in your set of both inners and outers. wink


~ Dan
1951 Chevy 3 window 3100
Follow this story in the DITY Gallery
"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
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Posts: 299
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'Bolter
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Can these be used on the 53 3600 3/4 ton trucks also?

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Yes, same part number.


'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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Good morning, going to re-visit this. I ordered the bearings from ebay, the inner bearing came just fine. The outer not so much. I'm learning but apparently these bearings are "sets" but the inner, outer races and ball bearing cage could be ordered seperately. When I recieved the outer bearing the Outer race and ball bearing cage seem correct but the inner race won't fit on the spindle. perhaps in the past someone inadvertantly swapped it out.

The number on the inner race that I recieved is #909565. ID is about .840". The inner race that was on the truck is #909545 (The best I can make it out. Stamp is tiny and not super clear) I attached a pic. The ID is about .905"

Can anyone confirm the correct part number for the inner race I need? Thanks!
Attachments
IMG_20250427_161701868_HDR.jpg (267.32 KB, 60 downloads)

Last edited by Oswald; 04/28/2025 11:36 AM.
Joined: Sep 2009
Posts: 4,392
Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Joined: Sep 2009
Posts: 4,392
Oswald - You are correct that the inner race (cone) for the outer front wheel bearing should be # 909545. I mentioned above the 3 component parts of the bearing set, ND909545 (cone), ND909625 (cup) and ND909725 (bearing), but neglected to give each number the term to go with it. Sorry!

Are the cup and cone you received the correct numbers? If so, I would say someone mixed up the bearing set somewhere along the line. frown

Here is an available complete B45 bearing set. Cheapest I could locate this time around. I could not find anyone offering just the correct cone. frown


~ Dan
1951 Chevy 3 window 3100
Follow this story in the DITY Gallery
"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
Joined: Jan 2022
Posts: 1,986
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'Bolter
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Rock auto has one for $60.79


'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
Joined: Jun 2018
Posts: 19
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'Bolter
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Thanks guys, the seller has been great and is working on a solution. Hopefully it works out, if not I'll be visiting one of these vendors.


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