Driveshaft support carrier bearing replacement.
 

My truck had a noticeable bump anytime I let off the throttle. I suspected u joints or the rear end. When I checked the driveshaft, the rubber bushing the carrier bearing seats in was in bad shape. I could move the shaft up and Down a good inch. A quick search of the Cummins forums revealed the parts stores do not have the correct parts listed for this truck. The bearing is 1.57 inside diameter rather than 1.3 they list. None of the parts stores had this size in stock except Napa.

Napa will not be able to cross reference this part to any Dodge truck. The guy spent 30 mins looking in the books and pulling parts. I did a quick Google search and found a Napa part number from the forums that was the correct one and in stock. It was around $70 for the entire assembly. It's SKF bearing. I do not have the number in front of me to post. They also have the replacement rubber however you can't put it on the old bearing as it will not slide over it.

I used a cutoff wheel and an air chisel to remove the bearing from the driveshaft. it is a pressed on bearing. I polished the shaft with some 220 grit sand paper th3n sprayed on blaster on it. The bearing started easily by hand sliding on about a 1/2 inch. To finish getting it "pressed" on, I clamped the driveshaft in my vise and used a piece of 5/32 music wire and a small 5 pound sledge hammer to drive the bearing on. I had to grind the wire end down some so it would fit between the bearing shield and the driveshaft. I also pulled the u joint caps and added new grease to them. If you do this they will not fit back in the u joint saddles without using a big c clamp.

This method actually was really easy to perform.

I am very interested in the part number for the parts if you could post it. Thanks.

The part # is hb88508-ab

Sorry for the delayed posting.

I just replaced mine. I'll dig through the recycle and see if I still have the SKF box from NAPA and post the number for comparison.

FWIW,

I replaced my carrier bearing with an aftermarket unit.

lasted about a year before the rubber failed completely out of it.


Bought a new one from Dodge

Been 5 years or more and thousands of miles later, and it's still in good shape.



YMMV..

I went with a spicer unit myself....been over 3 years, and 10's of thousands of miles with no issues.

I used a 12" long piece of 1-1/2" sch-40 pipe to hammer the new one on. Worked like a charm.

-Niemand

That's the biggest bearing puller I've seen in a long time. [coffee]

That's what she said.

I noticed it collecting dust in a corner of the shop, at which I work, on a Friday afternoon before the Saturday upon which I had planned to swap out ye olde (probably original) bearing carrier. I guess I must have done something that pleased the 1st Gen gods. That bearing popped off like it was nothing.

-Niemand

The rubber isolator is what failed on mine, and not the bearings

Thank you.

Yup me too....;) And I just cut the old bearing off carefully since I didn't have a puller like that!

My...what a big puller you have...[laugh]

That tool is cool. Does it have a brand name on it?