Frozen wheel studs

[gearhead63]

Previous owner had installed wheels studs to work with the aftermarket wheels he was using. Went back to a stock wheel and have extracted all but 2 of the studs. Several attempts to remove, have used WD40, PB blaster, torch, nothing. Rotated them out a little and then they just bound up. Anybody had the happen? Am I looking at replacing the axle?
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[narfire]

Looking at the picture, I'd try heat and then(try) screw them in a number of turns. If successful then unscrew. Flatten two sides like I think you have done to get a wrench or vice grips on.
I have a stripped hole so they can strip if too much effort is used to remove. I have to swap on another hub assembly on this winter.
Chris

[gearhead63]

Gave it a few more tries with heat but just can't get anything to turn them in or out. Ordered another axle shaft.

[RRoller123]

I haven't done this my self, but have been advise to only heat the surrounding area, not the stud itself, and try to cool the stud, to maximize the CTE changes between the two parts. Edd China did the cooling part with a spray from a can of WD-40, which I thought was insane and a fire hazard; made massive clouds of smoke, but it worked. Surely some cold water in a spray bottle with reasonably good volume would do just as well. Just a thought.

[djape1977]

studs are probably longer then necesary, with thread protruding on the back of plate they're screwed in. probably thread on the protruding end got damaged.

try to screw them in a couple turns and then use angle grinder to cut off what's behind the plate.
next step, screw on two nuts on the stud from the front and tighten them against eachother.
unscrew by turning the nut closer to plate.
if this doesn't work, weld the nuts to stud.

if all fails, you will break off the stud flush with the plate, then you've exhausted all options and you have to replace the shaft

[DieselSpider]

I am leaning towards welding a lug nut on so one could use an impact wrench to drive them in a few turns and the end of the stud behind the wheel hub can be ground off along with all the potentially bad threads. Then reverse the wrench and the stud should fly out with less damage to the hub.

[gearhead63]

Hmmm. Welding nuts onto the studs seem like it would work. Will give it a try. Will try to screw them in a little before trying to back them out. Thanks guys.

[toplessexpat]

To cool a small area - try "wart off" ... The coolant in there does a great job.

[toplessexpat]

+ I had a car once where a PO had messed with the studs. Two were straight studs that turned out. One (there were three studs per wheel... French!), had had the rear of the fascia drilled and a stud with a splined head pressed in... That wasn't coming out through the front!!!!!