wheel bearing questions

[SCMay]

I am doing work on my Max II, chains, rebuilding the T-20 and anything else.
I have 2 wheels front left and right rear that have movment in the bearings.
Is it ok to just change the ones that are loose?

Also I wanted to check on the bolt that goes thru the gear on the axles have movment, is that normal?

Thanks

[amphibious drew]

Its best to replace all the bearings at once, but not always in the budget. Realize that the unreplaced bearings could fail in the field so inspect them regularly. the slop is normal but should be attended too. I am guessing you have 1' round axles. you can get a piece of round drilled down the end and then cut into small segments and weld them to the sockets. this will reduce slop and give more sidewall for the bolt to handle the torque.