HD carrier bearing. The odd one.

[Mike C]

Replaced the carrier bearing on my 69 leaf spring short step today. It has the unusual triangle shaped carrier bearing. You actually take the sandwich plates apart and drop in the new bearing and clamp in back together.

My original one the rubber had shrunk and it just rattled around in there in addition to the bearings being whacked.

Hopefully the info here will help other people find the replacement part rather than having to cobble together a different style mount.

[Mike C]

Came from Driveshaft Specialist Inc. in San Antonio and they were great to deal with. Cost $45 delivered.

Neapco part # N212050x

It says GM heavy duty carrier bearing on the invoice.

[texasld]

Thank you for the part number, Mike!

[der Henning]

Neapco N212050X @ finditparts.com:
http://www.finditparts.com/products/...eapco-n212050x
They will even ship to Europe!

[Mike C]

Awesome. Glad I was able to help!

[mike16]

lots of line drawings of your HD bearing mount in the factory assembly manual. so its good that way.

[Corts60]

I know I'm bringing this thread back from the dead, but I am now trying to replace the bearing on my '67 GMC. The links above say this part is no longer available...anyone know otherwise?

The pic below is the part I received from Rockauto for my '67. Not even close.

Any help is appreciated.

[HO455]

Originally Posted by Corts60

I know I'm bringing this thread back from the dead, but I am now trying to replace the bearing on my '67 GMC. The links above say this part is no longer available...anyone know otherwise?

The pic below is the part I received from Rockauto for my '67. Not even close.

Any help is appreciated.

This link should help. I posted some Information on carrier bearings. Your truck is likely a leaf spring truck thus has a different style bearing. The new one you are holding is a 1/2 ton coil spring carrier bearing. Your drive shaft should have a splines joint in the back half. A half ton coil spring truck doesn't. If you cannot source a 3/4 ton leaf spring style bearing you may have to convert to the aftermarket billet style like I did on my Burban.

https://www.67-72chevytrucks.com/vbo...d.php?t=785366

[Mike C]

That's too bad, and complete BS that a bearing is discontinued.

The HD bearing appears to be MUCH more durable than the other styles. I have a had several 3/4 ton leaf spring trucks and they did NOT have the HD bearing so I am not sure what the paramaters were when they used it.

But one of that style you have picture of may can be disassembled and the inner bearing removed and possibley used in the HD housing. If the ID of the bearing is correct.

[HO455]

An older thread with some part numbers that may help you resurrect yours.


http://67-72chevytrucks.com/vboard/s...d.php?t=647859

[Corts60]

Originally Posted by Mike C

That's too bad, and complete BS that a bearing is discontinued.

The HD bearing appears to be MUCH more durable than the other styles. I have a had several 3/4 ton leaf spring trucks and they did NOT have the HD bearing so I am not sure what the paramaters were when they used it.

But one of that style you have picture of may can be disassembled and the inner bearing removed and possibley used in the HD housing. If the ID of the bearing is correct.

And this is exactly what I'll do Mike!

[68Gold/white]

Buying an uncommon part like this from Rock Auto could be tricky. SOme parts books don't even have the correct listings for carrier bearings and U-joints...ask me how I know, I sold auto parts for 13 years...

See if you can find the Neapco part number in this thread, or call around with that Neapco number see if they can cross it over. Most parts stores have pictures of their parts, this could help.

My 68 C-10 big block pickup has same type carrier bearing, but mine hangs down, yours sits on the bracket.

[Corts60]

Well, I had to order the bearing splitter to remove the bearing so it'll be a few days. In the meantime I think I found the rubber cushion that goes around the bearing:

SKF P/N RIS 208 A. Dimensions are spot on.
https://www.skf.com/us/products/roll...-RIS%20208%20A

[Mike C]

Awesome. I was reasonably sure that's what you were going to find. I want to say that the replacement bearing I had came with the "tabs" on the outer shell. I'll look and see if I too some other pics.

EDIT: If you go back up and look at my pics from the original post, the bearing appears IDENTICAL to the one you cut out of the replacement carrier bearing set.

EDIT 2: Do you have the part # from the Rock Auto piece to include in this thread for future reference? Glad you are adding to the knowledge base in my post.

[Mike C]

It is interesting even though we have the same carrier bearing, they are installed differently. Mine hangs and yours points up.

[Corts60]

Originally Posted by Mike C

It is interesting even though we have the same carrier bearing, they are installed differently. Mine hangs and yours points up.

Yeah that is weird. I wonder why they did so many different bearing set-ups for these trucks?

[Corts60]

Update!

I received my new puller and got the old bearing off. That was a bit of work! I'm fairly certain that bearing has been on there since 1967.

So I cleaned everything up and pressed on the new bearing and then mocked up the two carrier halves with the original rubber cushion. It was really loose. Although the cushion was in good shape I think it just shrunk. The second pic shows the original cushion.


The last two pics shows the old bearing and new bearing next to each other. The bearings are identical and are SKF part number BR88107. The only difference is what SKF calls the "Slingers". That would be the metal rings that are pressed onto the bearing outer race. The original slingers are perfectly round and the newer slingers have a protrusion that grabs a slot molded into the rubber cushion that it sits in.

I damaged one of the slingers when I pressed off the bearing as you can see in the last picture. I don't know how you could press that off and not destroy it unless you made a custom tool.

[Corts60]

Originally Posted by Mike C

Awesome. I was reasonably sure that's what you were going to find. I want to say that the replacement bearing I had came with the "tabs" on the outer shell. I'll look and see if I too some other pics.

EDIT: If you go back up and look at my pics from the original post, the bearing appears IDENTICAL to the one you cut out of the replacement carrier bearing set.

EDIT 2: Do you have the part # from the Rock Auto piece to include in this thread for future reference? Glad you are adding to the knowledge base in my post.

I think you're right Mike. I also edited my post above and added the part number.

[roboticjunky]

I also have a leaf spring C10, but has the horseshoe style center support (like the one Corts60 bought.)

Next time I replace mine, I'm going with this one NATIONAL HB88532. It's 1.378" I.D. and was found on some trucks and vans from 1987 to 2006. Just another option to think about since this one seems heavy duty.

[Corts60]

That looks legit. I’d like to know what the dimensions are from the mounting surface to center bore. I think the factory one is 3.4375 or so.

[HO455]

Great work.

[Corts60]

Originally Posted by roboticjunky

I also have a leaf spring C10, but has the horseshoe style center support (like the one Corts60 bought.)

Next time I replace mine, I'm going with this one NATIONAL HB88532. It's 1.378" I.D. and was found on some trucks and vans from 1987 to 2006. Just another option to think about since this one seems heavy duty.

So I looked up the specs and the centerline height from mounting surface to driveshaft centerline is 2.2". The factory HD centerline height is about 3 7/16 - 3 1/2". I think the bolt spacing is correct though. So if a 1.5" spacer plate was made, this would probably be a great choice to replace the factory HD bearing.

[68Gold/white]

Originally Posted by Corts60

So I looked up the specs and the centerline height from mounting surface to driveshaft centerline is 2.2". The factory HD centerline height is about 3 7/16 - 3 1/2". I think the bolt spacing is correct though. So if a 1.5" spacer plate was made, this would probably be a great choice to replace the factory HD bearing.

That's what I thought, a couple of days ago...

[roboticjunky]

Originally Posted by Corts60

So I looked up the specs and the centerline height from mounting surface to driveshaft centerline is 2.2". The factory HD centerline height is about 3 7/16 - 3 1/2". I think the bolt spacing is correct though. So if a 1.5" spacer plate was made, this would probably be a great choice to replace the factory HD bearing.

What if you flipped your mounting bracket and mounted the newer style driveshaft support so it was hanging down, how close would it be compared to where your driveshaft is now?

[68Gold/white]

Originally Posted by roboticjunky

What if you flipped your mounting bracket and mounted the newer style driveshaft support so it was hanging down, how close would it be compared to where your driveshaft is now?

Another potential good idea???

However if his bracket is riveted to the crossmember (as all, I've seen, so far), that may be easier said than done...