The Stovebolt.com Forums Home | Tech Tips | Gallery | FAQ | Events | Features | Search
Fixing the old truck

BUSY BOLTERS
Are you one?

Where is it?? The Shop Area

continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.

Searching the Site - a click away
click here to search
New here ??? Where to start?
Click on image for the lowdown. Where do I go around here?
====
Who's Online Now
7 members (sron48, J Lucas, Hotrod Lincoln, klhansen, Peggy M, Rich'sToys, 1 invisible), 536 guests, and 1 robot.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums66
Topics126,777
Posts1,039,265
Members48,100
Most Online2,175
Jul 21st, 2025
Step-by-step instructions for pictures in the forums
Previous Thread
Next Thread
Print Thread
Joined: Sep 2018
Posts: 86
N
'Bolter
'Bolter
N Offline
Joined: Sep 2018
Posts: 86
Hi there,

I've gotten to working on my front brakes/hub assemblies on the 1955 2 ton and I have a bad front hub assembly. My inner bearing cup is loose in the bore. It looks like at some point the cup had spun inside the hub bore. Someone attempted to stake the bore in the past by the look of it. So I am searching for a replacement.

Does anyone have a good front hub assembly lying around that they would sell ?

Thanks
Attachments
IMG_20210305_142445933.jpg (224.67 KB, 143 downloads)
IMG_20210305_142839761.jpg (151.71 KB, 142 downloads)

Joined: Jun 2011
Posts: 5,096
E
Crusing in the Passing Lane
Crusing in the Passing Lane
E Offline
Joined: Jun 2011
Posts: 5,096
Is the bore smooth enough to use shim stock? I have a pair of front hubs including brakes, spindles, etc.

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Joined: Sep 2018
Posts: 86
N
'Bolter
'Bolter
N Offline
Joined: Sep 2018
Posts: 86
Ed. The bore is a mess. Including the bore that the seal presses into. I wanted to try find a good replacement before getting the lathe going. Ed If you are interested in selling one of your hubs maybe send me a private message and we can see if the part is the same and work out the details.

Thank you

Joined: Mar 2004
Posts: 6,189
M
'Bolter
'Bolter
M Offline
Joined: Mar 2004
Posts: 6,189
What's the casting number on the Hub?

4-3/4" or 5-1/4" wheel center hole size?

Asking for parts wanted in the tech section is really frowned on...so lets just figure out what part number you need here and then you can take buying and selling to the Swap Meet Section or via PM with sellers.

Mike B smile


Mike Boteler

1956 Chevy 3100 Resto Rod
1956 8400 Wrecker w/Holmes 525
1956 9200 Tractor w/Allison Automatic
1952 Willys M38 Army Jeep
1953 Willys M38A1 Fire Jeep
1978 Jeep CJ-5 Navy Jeep
1984 Jeep CJ7
+++++
Hughesville, MD
Joined: Nov 2005
Posts: 6,061
3
3B Offline
'Bolter
'Bolter
3 Offline
Joined: Nov 2005
Posts: 6,061
Hy Noonan and guys, could you clarify if the truck in question is a 1955 "A" or first series or a 1955 "B" or second series? The hub casting number Mike B requested would also be helpful. If you could post the trucks serial number that would also be helpful.

Joined: Sep 2018
Posts: 86
N
'Bolter
'Bolter
N Offline
Joined: Sep 2018
Posts: 86
Hi 3B

It's a second series 55 chevrolet.

5 bolt wheel flange. Casting # 3704482.

If anyone is curious. The casting numbers are found by looking inside of the hub assembly. Most likely covered in 65 year old grease

From my limited research so far these hubs were in use from 48 or so up to 56? Looks like 57 went to 6 bolt wheel flange.

Last edited by Noonan; 03/07/2021 5:49 PM.
Joined: Nov 2005
Posts: 6,061
3
3B Offline
'Bolter
'Bolter
3 Offline
Joined: Nov 2005
Posts: 6,061
Hy Noonan, thank you for the information, I'll check and see if I have one and get back to you.

Joined: Nov 2005
Posts: 6,061
3
3B Offline
'Bolter
'Bolter
3 Offline
Joined: Nov 2005
Posts: 6,061
Hy Noonan, a quick check of one of my parts books that covers up to the 55"B" series yielded your casting number as a part number for a new part for the 16 series and the 18 series (L.C.F.). I have one of these trucks, still partially assembled, kind of difficult to access at the moment. I will see how much of a hassle it will be to work on if the weather cooperates.

Joined: Mar 2004
Posts: 6,189
M
'Bolter
'Bolter
M Offline
Joined: Mar 2004
Posts: 6,189
Casting 3704482 was used from 1954-59 on the 1-1/2 ton and 1954-55 on 2-ton, BUT the flange for the wheel center hole could be 4-3/4" or 5-1/4".

The part number for the 4-3/4" flanged hub is 3704489.

The part number for the 5-1/4" flanged hub is 3704482.

Mike B smile

Edit...this is based on my US Parts Books...

Last edited by Mike B; 03/08/2021 2:58 AM.

Mike Boteler

1956 Chevy 3100 Resto Rod
1956 8400 Wrecker w/Holmes 525
1956 9200 Tractor w/Allison Automatic
1952 Willys M38 Army Jeep
1953 Willys M38A1 Fire Jeep
1978 Jeep CJ-5 Navy Jeep
1984 Jeep CJ7
+++++
Hughesville, MD
Joined: Sep 2018
Posts: 86
N
'Bolter
'Bolter
N Offline
Joined: Sep 2018
Posts: 86
Originally Posted by 3B
Hy Noonan, a quick check of one of my parts books that covers up to the 55"B" series yielded your casting number as a part number for a new part for the 16 series and the 18 series (L.C.F.). I have one of these trucks, still partially assembled, kind of difficult to access at the moment. I will see how much of a hassle it will be to work on if the weather cooperates.

Ok thank you for all the help. I'm used to waiting for weather to cooperate smile No rush there

Originally Posted by Mike B
Casting 3704482 was used from 1954-59 on the 1-1/2 ton and 1954-55 on 2-ton, BUT the flange for the wheel center hole could be 4-3/4" or 5-1/4".

The part number for the 4-3/4" flanged hub is 3704489.

The part number for the 5-1/4" flanged hub is 3704482.

Mike B smile

Edit...this is based on my US Parts Books...

Mike, thank you for the information. I forgot to confirm the wheel center hole when I was in the shop today, I will have to check that. It will most likely correspond with what your parts books are showing for the casting number.


Thanks again

Joined: Sep 2018
Posts: 86
N
'Bolter
'Bolter
N Offline
Joined: Sep 2018
Posts: 86
My dad and I spent the day spinning the hub on the lathe we made a sleeve and pressed it into place and we machined that to size. turned out really well.

Thanks for everyone's help I won't be needing another hub for the time being.
Attachments
IMG_20210308_140306040.jpg (245.97 KB, 60 downloads)
IMG_20210308_161222561.jpg (246.64 KB, 62 downloads)
IMG_20210308_151547739.jpg (195.74 KB, 61 downloads)
IMG_20210308_173835036.jpg (183.91 KB, 61 downloads)
IMG_20210308_191346015.jpg (174.96 KB, 59 downloads)

Joined: Jun 2011
Posts: 5,096
E
Crusing in the Passing Lane
Crusing in the Passing Lane
E Offline
Joined: Jun 2011
Posts: 5,096
Good job, no chance to find new ones, modify damaged one a good save!

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Joined: Nov 2005
Posts: 6,061
3
3B Offline
'Bolter
'Bolter
3 Offline
Joined: Nov 2005
Posts: 6,061
Hy Noonan, great work, thanks for letting us know. I hope it all works well.

Joined: Feb 2004
Posts: 28,674
H
Kettle Custodian (pot stirrer)
Kettle Custodian (pot stirrer)
H Online: Content
Joined: Feb 2004
Posts: 28,674
Unless the wear in the casting is REALLY sloppy, Loctite green "Stud and Bearing Mount" can fill gaps up to about .015". I've used it pretty frequently for this exact type of situation with a good success rate.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!

Moderated by  69Cuda, Super55 

Link Copied to Clipboard
Home | FAQ | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 8.0.0
(Release build 20240826)
Responsive Width:

PHP: 8.3.11 Page Time: 0.103s Queries: 16 (0.075s) Memory: 0.6596 MB (Peak: 0.7784 MB) Data Comp: Zlib Server Time: 2025-09-22 04:24:20 UTC
Valid HTML 5 and Valid CSS