Front Axle outer spline shaft help!!!

[Rotten Ralphy]

Any suggestions on how to separate the hub and the spline shaft?

20ton press won't even vbegib to seperate the two.

[89eliminator]

heat obviously would be my first choice.  i've also had luck using the steering to my advantage.  put it back on with the bolts about halfway in.  wedge something between a bolt and the inner C of the axle.  

[mjeff87]

I'd mix up a small batch of ATF and acetone.  Let it sitting the way it is and pour a bunch of it over the axle stub and let it sit for a few hours/overnight.  Then try carefully tapping the stub (thread the axle nut back on flush with the end so you don't peen over the threads.

[BeatCJ]

Another method is an air chisel. I agree with what was said above, try soaking for a couple of days first.

[Rotten Ralphy]

Tried heat while pressing without any progress

Soaking it in PB Blaster since yesterday.


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[AZJeff]

You will need to create a small "lake" of PB Blaster or the like around where the nut would normally seat on the hub.  This will allow gravity to help the PB Blaster to seep down into the splines.

 

Heat will be tricky, because the only area you can really get the heat to transfer through is the part the splines of the hub.  If you apply heat to the parts further down, it must travel through the bearings themselves, and that's a very small path, with lots of resistance to heat flow.

 

What sort of heat are you using?   On parts that big, you need to be using an oxy-acetylene torch.   Anything less won't apply enough heat fast enough to get the hub splines to expand away from the axle shaft.

[Eagle]

Do you need to save the hub? If not, slice it with a cut-off wheel.

 

[54bobby]

atf and acetone makes PBB look like Childs play. a good over night soak if still no go, a couple good hits with a bfh then another over night soak. it'll come apart.

[ghetdjc320]

4 hours ago, Eagle said:

Do you need to save the hub? If not, slice it with a cut-off wheel.

 

That unit bearing looks pretty rough and by the time you do get it separated, that shaft and unit bearing will likely be trashed. 

[Rotten Ralphy]

Acetylene torch. I will pick up some acetone and try the ATF & Acetone trick. Today I was given a Drivers side axle assembly, So I was able to install a new hub and U-joint and utilize the gifted spline shaft. Tomorrow I will try soaking the one I pulled out and see if the AtF mixture works. The blaster didn't phase it.

Thanks for all your help!


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[MiNi Beast]

heat it, freeze it, beat it! 

 

 

or take to a local shop and have them press it out with a 50 ton press. or just leave it and make yard art with it, or keep as trail spare. get you off trail eh. 

[Rotten Ralphy]

3hrs under 50ton pressure, red hot & quench x 4. & it finally popped apart.


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[MiNi Beast]

right on.