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My new '81 C3 has had a "clunk" when I put it into gear. I finally had a chance to climb under it yesterday. It seems that the transmission mount was only held to the transmission by one bolt. That bolt was a pracking self tapping screw! I hope that the rest of the car hasn't been Bubba'ed like this.
I had to jack up the transmission, loosen the transmission crossmember, move the exhaust system support bracket, and retap both of the bolt holes on the rear of the transmission. I feel so much better now that it's done right and no more "clunk" either.
Glad you found the culprit and restored a peace of mind, as well.
Mine was a fragmented pinion snubber bushing in the frame mount. Sure is a lot more quiet and comfortable now that it's been replaced.
If you posted before about a clunk when put into gear I musta misted it. I had the same exact problem and result with an 81 Camaro Z28. I could have helped but I missed it.
My new '81 C3 has had a "clunk" when I put it into gear. I finally had a chance to climb under it yesterday. It seems that the transmission mount was only held to the transmission by one bolt. That bolt was a pracking self tapping screw! I hope that the rest of the car hasn't been Bubba'ed like this.
I had to jack up the transmission, loosen the transmission crossmember, move the exhaust system support bracket, and retap both of the bolt holes on the rear of the transmission. I feel so much better now that it's done right and no more "clunk" either.
Ya know, some people throw the term "Bubba" around in situations where I don't really think it applies. Like if someone uses a little rtv on a valve cover gasket to fix an oil leak, it's "Bubba stikes again!!!", But man, a self tapping bolt holding the transmission in? That's bubba!!!