Frozen Tripod joint
I have been hearing a growl coming from the drivers side when above 30 MPH. I put the car on jack stands and listened while I brought the speed up. It was either the hub or the CV joint on only the left side. Rotating the wheel by hand while having the steering wheel turned to the limit I could feel and hear the CV joint clicking. Since I have close to 300K on the car I decided to replace both the hub and the halfshaft. I was able to swap out the hub but when it came to releasing the tripod joint I couldn't get any movement off the transaxle stub. I've tried PB Blaster, pry bars, rapping on the joint with a 8# mallet, rigged up a reverse c-shape puller (applying extreme pressure between the transaxle and the tripod to the point where I feel any more pressure will distroy the stub's ballbearing). I removed the boot and the axle so that only the tripod was on the stub. Then I went through all the past steps again, also trying heat (from a heat gun) while prying it with rapid strokes...nothing even budges it. There is no play on the stub, it's frozen solid.
So, I believe that I saw a post recommending to remove the stub from the transaxle and work on it on the bench (where I could better soak it with PB Blaster, apply a torch etc.). Has anyone done that? Is it as simple as removing the bearing snap ring and again prying on the tripod joint to remove the stub with it's bearing? Do I need to drain the differential fluid first? Should it just slide out or is it locked in by some means? Or do other parts of the transmission need to be disassembled first?
I've invested more than 12 hours over multiple days so far trying to get it to budge. Working under the car just isn't going to work for this issue. Any info on the stub removal process would be welcomed.