How common is this and is there any apparent root cause?
Random casting difference is my guess. It's not a very common occurance at all.
How common is this and is there any apparent root cause?
OK guys, if thats the way you feel when I am just asking for some input and possible information, I will not bother posting, thanks anyways.
I did not read it as such. Sounds more like a "shit happens" scenario. Sorry to hear, cat.
Think about it: if cat didn't say where he had it built in his first post, the first reply back would've been some snarky remark like, "who built it" or "talk to your builder".
I know on my Rossler turbo 400 there is a piece that Rossler adds to help keep the snap ring in place. It's works as a back up. I would also think that a built trans vs a stock trans would put more pressure on the snap ring. I'm no trans builder just my guess?
From what I understand from Mike L, it looks like a solenoid stuck open and produced uncontrollable pressure. Apparently there has been problems with these. Mile L would have to chime in to verify though.
You can drive around with 500 PSI + of pressure and not have an issue blowing the lugs out the case. Considering how rare it is for it to happen with how many built transmissions there are out there and the fact they will do it stock form also it seems to be a luck of the draw case imperfection issue instead of something caused by to much pressure.