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USCG M3
12-05-2008, 08:19 PM
Broken diff bolt confirmed. Now the question of the day is what is the best way to get it out with out stripping the diff case?

I was driving today and I heard a big pop and then a loud ratchet sound when I shifted into second gear. At certain RPMs the noise went away and seemed to feel normal, so I know I can rule out the my R&P gears breaking. I have had a thud every time I shifted gears for the since yesterday which I assumed to be the flex disc. i am picking up a new one on Monday. This problem does not however seem to be caused by the flex disc. what symptoms to them have when they completely fail? I am getting under the car tomorrow, but i am just trying to get ideas on what I may be dealing with.
atdM3
12-05-2008, 08:23 PM
Is it possible you did not shift completely into 2nd gear and when you accelerated you popped out of gear? This scenario creates a very loud clunk/noise, and has happened to me a few times.
USCG M3
12-05-2008, 08:25 PM
^^ i wish it was that easy. I hoped it was but upon driving no faster than 5 mph I know it is something more. I also stopped and re accelerated hoping that was the case.
CMG
12-05-2008, 09:24 PM
Diff bolt?
Braymond141
12-05-2008, 10:05 PM
Diff bolt?

I'm going to have to agree.

Get your ass under the car and look. ;)
fiveightandten
12-05-2008, 10:11 PM
Diff bolt?Yikes.

To clarify, for the OP...

Front diff mounting bolt. There are 3 mounting points for the diff itself. 2 in the back, one in the front. Look to the bottom left of the input (drive) shaft and you'll see a big bolt in a carrier bushing. Make sure it's not snapped or bent.
USCG M3
12-06-2008, 11:14 AM
Broken diff bolt confirmed. Now the question of the day is what is the best way to get it out with out stripping the diff case?
USCG M3
12-06-2008, 11:20 AM
now for this larger bolt do plan on retapping the diff cse or running one long enough to come out th back hold it there with a lock nut and washer?
USCG M3
12-06-2008, 11:42 AM
I am going try and remove the bolt by drilling a small hole in the piece left on the back side that way the direction of motion to tighten my smaller bolt will walk the old one out. Then maybe I can re tap it for that larger bolt. Your idea was the first thing that came to my mind too.