Originally Posted by
Davezj
if you have been hitting the end of the drive shaft with a hammer then you might have already mushroom the end of the shaft and you will never get it out of the hub without grinding off the end of the driveshaft that you have been whacking on.
i would never recommend hitting the drive shaft directly with a hammer.
one method i have used is with a really rusted drive shaft is an air hammer, get the spike attachment on the end and put it in the convenient dimple in the end of the driveshaft and let rip with the hammer action. but you have to have the hub on the car to do this really. you can do it if you have a really good vice bolted to a fixed bench but you really have to put your weight behind the air hammer and lean into it.
if that does not work then you remove the hub and driveshaft assembly get a large hydraulic 12 ton and above press on it. support the hub assembly and apply the pressure to the end of the drive shaft it will bo with a bang and remember to support the drive shaft while applying the pressure as it will fall to the floor with some force. you can quite easily damage the teeth on the tone wheel of the ABS sensor if it just drops to the floor.
but i normally find just applying some wd40 for a week or so before attempting to remove the drive shaft will allow it to push out with finger pressure only.
if you don't have a hydraulic press most garages do and i find most of them are quit happy to lend a hand to someone how is stuck. but at this moment in time with the lockdown, you might not find many open.
the other penetrating oil i have used for really stubbern stuff is Aerokroil in the orange can, i only use it on special occasions and in small quantities as it is very expensive for what it is, but i have not come across anything it could not unstick given enough time to soak in. i can not categorically say if it is any better than other penatrating oils no written up test evidence. but it has always worked me if wd40 has not.