Originally Posted by
TURBOLAG48
I had this problem on my 1st gen... it took me 2 years before I figured out that it was my hard motor mounts... they were too hard and the torque from my engine was snapping up to 2 of them at a time. I dont know if you have solid motor mounts or moded ones but this was my problem. Also a leaky valve cover gasket leaks Alllll the way down to the front bolt on the tranny and heat, vibration, oil, makes it back out. Then the others fail...
Again I am not sure what you have done to your car but this is what happened to me... 3 clutches later... (1 stage 3) and 2 trannys... 40+ hours under the car.... it was the hard motor mounts... and the leaky valve cover.... Believe it or not...
That's funny, I have solid mounts in my car. When I say solid, I mean welded steel. I have never had a transmission bolt back out. I am a sprirted driver running my car over 40psi beyond the stock tach.
OEM bolts do wonders. Try not to tighten the little past its yield. Another thing that crosses my mind is that you might need to adjust your clutch. If you have too much travel with your clutch release bearing your slave cylinder will put additional force on your transmission bolts and crankshaft.