The Stovebolt Site Forums The Shop Area Driveline ho72 5:38 to 4:10

Hi . I have a 62 one ton with a 5:14 third member that's in good shape and a 4:10 with questionable bearings, will the bearings interchange , is it possible to switch just the crown and pinion

I'm reasonably sure bearings will interchange. I'm not sure if the 4.10 gear can be bolted on the other carrier/differential.

You might search on some of the 4x4 forums for the answer, they more regularly swap pieces and parts around.
http://www.pirate4x4.com/forum/chevy/771317-eaton-h072.html

The issue I see if getting the good bearings off the carrier without destroying them. Usually you would use a slide hammer with claw to remove the carrier bearings, in that process, in my cases, the bearing was not reuseable.

Can you get these off without destruction?

There might be a clam shell type bearing puller that can remove them without damage, but they cost more than you might want to spend for one time or infrequent use.

I seem to remember from doing the ratio conversion on round track race cars that there is a different spacing of the flange on the carrier assembly where the ring gear mounts between the 4.10 and the lower-ratio gear assemblies. When we ran 4.10 and 4.56 gearsets for different-length tracks, we kept two center sections built up and swapped the whole unit. The higher gear worked better on a "long" 1/4 mile track where the distance was measured around the infield, while a "short" track was measured around the outside perimeter. There was about 100 feet or a little more difference in the straightaway length, which would allow a low-geared car to over rev.
Jerry

Thanks all for the info. As I've never had a rear end apart and the bearings on the 4:10 are questionable I tear into it with the help of manual and see what I can learn

as Jerry said sometimes the flange on the carrier is in a different place to accomodate the different thickness of ring gear. Dana 44's the split was at 3.73 I think, 4.10 was a different carrier. At any rate, if the adjustment shims are behind the carrier bearings like on a Dana 44, you would have to remove the bearings to adjust the way the gears mesh anyway, even if the carrier is the same and the ring will bolt to it. It is not just a matter of swapping the parts out.

If the adjustments are made on the carrier end caps (like Ford 9" or Mopar 8 3/4), you don't have to remove the carrier bearings and may be able to swap the ring from one carrier to the other.

Mike, the carrier bearing adjusters are threaded and easy to deal with, no shims.
Picture

Thanks, Grigg! That makes it a lot easier! I have not had mine apart but have done a number of others over the years!

Do yourself a huge favor and spend some time cleaning the threads VERY WELL. It will make adjusting the carrier much easier.