Center Support Bearing for International Loadstar 1754

Bullet23

New User
Hi guys, I need some help trying to figure out how to press on a new center support bearing on to the front driveshaft of a 1977 International Loadstar 1754 with the DT466 and the Spicer CM5252A Transmission.

The other day we were out delivering a load of gravel and on the way back the rubber boot surrounding the center support bearing gave way and the driveshaft was banging around in the metal U shaped bracket for about 10 miles. I ended up taking the driveshaft to a local 4x4 shop and they said that someone had welded the splines onto the driveshaft and they couldn't press the bearing onto the shaft. When I look at the spline section it appears to be pressed into me and does not appear welded. If anyone has done this type of repair and can direct me with the right steps that would be great.

I have posted pictures of the dump truck along with the drive shaft and the new center support bearing. In the pictures of the driveshaft the section that still has u joints attached the back of the large driveline drum brake assembly on the back of the transmission. The splines connect to the slip joint which connects back to the large second piece of the drive shaft.

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The old bearing has been welded to the shaft, probably because it has had a previous bearing spin and wear the shaft down.

Easy to get it off, just cut as much away with a cut off grinding wheel, then carefully grind away the welds without getting into the shaft.

Try the new bearing on the shaft. It should be a press fit. If it's loose you could try some Locktite 609, or equivalent.

If it's severe, the shaft will need to be built up and repaired or replaced. A "real" drive shaft shop could replace the spline.
 
You need to take that shaft to a driveshaft repair shop and have the splined end replaced, that end probably will never hold a bearing correctly if you can get one on it at all.
Just my opinion, have built and rebuilt a lot of shafts over the years.
Gary
 
Thanks yall, that was a good catch that the inner race was welded to the shaft. It hit me immediately after yall commented on it. What i ended up doing was cutting off the old welded race and getting a precision 6040 sized bearing which has a 1.76 inside diameter which was enough to squeak over the splines but small enough to repress on the shaft. Then we put some Loctite 680 around the shaft where the bearing would be sitting. Seems to be holding pretty good.
 
Just an update its been a little over a month since the bearing was repaired and its still going strong. We had a problem with it still wanting to push the rubber surround out of the bearing holding, so I took a clamp got the rubber pushed back in and then welded a hexagonal brace around the carrier bearing to hold the rubber in place and not allow it to push out. It's been holding up really strong with that modification.
 

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