Front Axle Pinion Bearing
Moderators: Cal_Gary, T. Highway, Monkey Man, robi
Front Axle Pinion Bearing
Hello and Happy Veterans Day!
Hope someone can help me with some information. I have a 1952 M37and I am looking for the front axel pinion bearing. Is the one that goes on the rear part of the axle that connect to the drive shaft. From the information I found it is a double bearing set number 44363-D made by Timken. Is this information accurate? I am having a hard time finding it locally. Is there a replacement part number perhaps made by another company?
The help is greatly appreciated. Thank you in advance,
Rafael
Hope someone can help me with some information. I have a 1952 M37and I am looking for the front axel pinion bearing. Is the one that goes on the rear part of the axle that connect to the drive shaft. From the information I found it is a double bearing set number 44363-D made by Timken. Is this information accurate? I am having a hard time finding it locally. Is there a replacement part number perhaps made by another company?
The help is greatly appreciated. Thank you in advance,
Rafael
jahrafa
EN2 Ruiz
1952 M38, 1952 M37
EN2 Ruiz
1952 M38, 1952 M37
- W_A_Watson_II
- SFC
- Posts: 627
- Joined: Sat Oct 20, 2007 7:02 am
- Location: MO
- Contact:
Re: Front Axle Pinion Bearing
Ah, the hard one to find, and expensive when you do.
https://www.vintagepowerwagons.com/_fil ... index=true
https://www.vintagepowerwagons.com/_fil ... index=true
Re: Front Axle Pinion Bearing
I don't have my manuals here but I thought there were 3 bearings in the pinion. Pretty sure DC Truck Parts will have your bearings.
"It may be ugly, but at least it is slow!"
Re: Front Axle Pinion Bearing
Yes, the pinion has 3 roller bearings.
Definitely not your garden-variety Dana setup.
Setting the preload is a precise and tedious job.
It involves string and spring gauges.
And patience.
And the correct tools.
Otherwise the job is for naught.
Definitely not your garden-variety Dana setup.
Setting the preload is a precise and tedious job.
It involves string and spring gauges.
And patience.
And the correct tools.
Otherwise the job is for naught.

Re: Front Axle Pinion Bearing
Thank you all for the help! and sorry of the late response.
I was able to purchase, at great expense mind you, the double bearing and I am in the process of installation. When I pulled the seal, I found that the bearing was not broken but it was not adjusted properly, meaning that the pinion was loose and had a lot of movement back and forth. I had to fabricate the tool to get the adjustment nut off.
Can the bearing bearing cup be removed from the rear or do I have to remove the differential?
Thank you again!
I was able to purchase, at great expense mind you, the double bearing and I am in the process of installation. When I pulled the seal, I found that the bearing was not broken but it was not adjusted properly, meaning that the pinion was loose and had a lot of movement back and forth. I had to fabricate the tool to get the adjustment nut off.
Can the bearing bearing cup be removed from the rear or do I have to remove the differential?
Thank you again!
jahrafa
EN2 Ruiz
1952 M38, 1952 M37
EN2 Ruiz
1952 M38, 1952 M37
Re: Front Axle Pinion Bearing
Yep the differential has to come out. No biggie, mark the placement first of the ends before removing the caps. Easy to do that.
The pinion preload is very tedious to set, as you have to pull it several times to set each bearing set individually.
If you don't have the TM's, go to steelsoldiers.com where the full set of them is available in a free download.
PoW
The pinion preload is very tedious to set, as you have to pull it several times to set each bearing set individually.
If you don't have the TM's, go to steelsoldiers.com where the full set of them is available in a free download.
PoW
Re: Front Axle Pinion Bearing
Thank you! I will work on that soon. I am trying to get the vehicle driving in good condition before I start doing body work. Anyone knows the code for the NAVY gray paint?
jahrafa
EN2 Ruiz
1952 M38, 1952 M37
EN2 Ruiz
1952 M38, 1952 M37
Re: Front Axle Pinion Bearing
Gillispie 36173 from Rapco in Texas
Re: Front Axle Pinion Bearing
Thank you! I'll keep posting on the progress.
jahrafa
EN2 Ruiz
1952 M38, 1952 M37
EN2 Ruiz
1952 M38, 1952 M37
- HingsingM37
- 1SG
- Posts: 1458
- Joined: Sat Oct 20, 2007 3:43 am
- Location: North Carolina
Re: Front Axle Pinion Bearing
Here's a tip. Keep in mind any proper Timken bearing dealer (BDI, Motion, Applied, ect) should be able to get any cup and cone at substantial savings over the internet dealers. Most major cities have a branch of one of these vendors. All taper roller and ball bearings on M37's or civvy PW are current production. You will need to take them your part numbers off the bearings. Ask them to place it on their stock order as Timken ships free to their dealers. That will save you shipping as well. Just an FYI. 

David
HingsingM37
1958 M37B1
1968 M101A1 Trailer
MVPA# 33078
"Do Not Take Counsel of Your Fears"
General George S. Patton Jr.
"Those who pound their guns into plows, will plow for those who do not".
HingsingM37
1958 M37B1
1968 M101A1 Trailer
MVPA# 33078
"Do Not Take Counsel of Your Fears"
General George S. Patton Jr.
"Those who pound their guns into plows, will plow for those who do not".
Re: Front Axle Pinion Bearing
Hello. Thank you for the tip. I am back working on the truck. I have a local Timken dealer near my house so I am going to check there. One more question. What kind of differential is on the M37? Dana?
jahrafa
EN2 Ruiz
1952 M38, 1952 M37
EN2 Ruiz
1952 M38, 1952 M37
Re: Front Axle Pinion Bearing
1952 M37 - Mods = Locking hubs, battery switch, 2 bank charger, PB, PS, Pertronix SSI, Elect fuel pump w/filter&pressure switch, bikini top, tool box liners, 24v & 12v fused circuits.
Planned: Seatbelts
Planned: Seatbelts

Re: Front Axle Pinion Bearing
That is a pinion seal for the M37, not the bearing set.
The drop-in (complete 3rd member) is purely Chrysler Corp, not Spicer, Dana, or anybody elses design.
PoW
The drop-in (complete 3rd member) is purely Chrysler Corp, not Spicer, Dana, or anybody elses design.
PoW