Quote:
Originally Posted by SeanIngstrum
Yeah, I kind of figured. Pointless I guess, sorry about that. Well, next step is to pull it then we'll see. Question; Would it be smart to, after pulling the front drive shaft, try to engage the front differential? Obviously if the input bearing and anything else was damaged, I wouldn't think of doing so, but if all looked good? Wouldn't that tell me if it is in working order or not? Or is it bad to do that with the shaft off? Probably a stupid question I know, but it just popped in my head and seems logical.....to me anyway.
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Not pointless at all - quite the opposite! While the giubo is shot and requires replacement, it doesn't look like it was the source of the horrible noises - it's still all attached after all. I also cannot see why there would be any damage to the diff input bearing.
Have a look at the other end of the front drive shaft, where it leaves the transfer case on the back of the transmission. The red arrow in this picture...
There's plenty of cases where the shaft has stripped out, making nasty sounds. Threads like
this one document it pretty well.
Makin' progress...
*edit* P.S. - maybe this munted giubo is what the BMW tech referred to when he said the front diff input was shot...?