I changed the axles on my 646 from the long LBH axles to 446 axles. I installed normal OEM 15 inch wheel loader wheels with OEM size tires. I checked the end play and added an OEM shim on one side to get it to spec. I drove it around for 30 minutes and opened the transaxle cover to replace the seal on the hi/low shifter. The end of the differential case half into which the axle slides was cracked. It was the one to which I added the shim. The diffential case bolts were intact and the nuts were tight. Does anyone have any idea what could have caused this?
444
Case 646 Cracked Differential Case Half
I changed the axles on my 646 from the long LBH axles to 446 axles. I installed normal OEM 15 inch wheel loader wheels with OEM size tires. I checked the end play and added an OEM shim on one side to get it to spec. I drove it around for 30 minutes and opened the transaxle cover to replace the seal on the hi/low shifter. The end of the differential case half into which the axle slides was cracked. It was the one to which I added the shim. The diffential case bolts were intact and the nuts were tight. Does anyone have any idea what could have caused this?
Attachments
Assuming that your 646 was a former backhoe model, are you sure that the crack was not there prior to swapping out the axles? The additional weight of the backhoe does add a good deal of stress to the components. I personally don't think that the change of the axles and wheels would have anything to do with this failure.
Bob
Bob
Those gear sets show up on Evilbay - eBay regularly and you could get a set for cheap. Swap them out and see what happens
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
