WTF? Ring gear bolts came loose and went threw Diff cover!

93CobraR · 11-06-2001, 08:11 PM

Well, I get a call from the guy that bought my car last night and he said that something was wrong with the rearend and it was making all this noise. So I go out and look at it, when I get under the car I see that there is 80w90 all over the gas tank and theres a hole in the diff. cover. So I pull it off and see two ring gear bolts laying in the housing all chewed up. I rotate the wheels and notice that everyone of the bolts had backed out and the ring gear was moving in place. First thing I want to say is I put the rearend together when I was like 14 so it's held up for awhile, I also know for a fact that I torqued the ring gear bolts to around 90 ft. lbs. and used lock tite. So what I'm wanting to to know is what the hell caused this to happen? I only put around 100 miles on the thing in 4 years and that was all really track passes. He has had the car for about a month and put around 6,000 miles on it or so. Could him running it pretty hard, as far as burnouts and tail whips cause this? Defective ring gear bolts? I know I put them to specs when tightening them, but was it not enough? So what do you guys think?

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87 GT, Cobra R's,GT-40 heads,Crane 2031,1.7's, Edelbrock intake, long tubes,BBK cold air, Mass air,pulleys,Pro 5.0, King Cobra,Lakewood Lift Bars,50/50's,subframes, 4.10's.
Best time 12.759
Best MPH 106.79
Best 60' 1.695

Visit my site at:
http://www.geocities.com/cobrar93_2000/MyPage.html

11-06-2001, 08:11 PM	#1
93CobraR Registered Member Join Date: Oct 1999 Location: Cincinnati, Ohio Posts: 1,575	WTF? Ring gear bolts came loose and went threw Diff cover! Well, I get a call from the guy that bought my car last night and he said that something was wrong with the rearend and it was making all this noise. So I go out and look at it, when I get under the car I see that there is 80w90 all over the gas tank and theres a hole in the diff. cover. So I pull it off and see two ring gear bolts laying in the housing all chewed up. I rotate the wheels and notice that everyone of the bolts had backed out and the ring gear was moving in place. First thing I want to say is I put the rearend together when I was like 14 so it's held up for awhile, I also know for a fact that I torqued the ring gear bolts to around 90 ft. lbs. and used lock tite. So what I'm wanting to to know is what the hell caused this to happen? I only put around 100 miles on the thing in 4 years and that was all really track passes. He has had the car for about a month and put around 6,000 miles on it or so. Could him running it pretty hard, as far as burnouts and tail whips cause this? Defective ring gear bolts? I know I put them to specs when tightening them, but was it not enough? So what do you guys think? ------------------ 87 GT, Cobra R's,GT-40 heads,Crane 2031,1.7's, Edelbrock intake, long tubes,BBK cold air, Mass air,pulleys,Pro 5.0, King Cobra,Lakewood Lift Bars,50/50's,subframes, 4.10's. Best time 12.759 Best MPH 106.79 Best 60' 1.695 Visit my site at: http://www.geocities.com/cobrar93_2000/MyPage.html