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T
Former Member
Send PMMOUNTAIN ASH, United Kingdom
Joined: 2/8/2002
Posts: 19
Vette(s): 1977 BLACK VETTE COUPE 350/350 AUTO both rebuilt,turbo bonnet/lights,centreline wheels.I think paint orig was blue?black lux interior,USA OWNER services/police?like to trace.
That horrible noise coming from right rear especially while reversing,just changed oil in diff 2 bottles GM OIL 1 ADDITIVE but hav'nt tried car out yet.NEW UJ's,could it be a wheel bearing or worse! 
|IMG|http://c3vetteregistry.com/member_uploads/590/taffys vette.jpg |/IMG|
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M
I had the same sound in my old '79 Corvette. It went away when I changed the gear lube and additive. Hope that works for you. My second suggestion was going to be universal joints, but after I re-read your post I saw that those (UJ) were new.
Good luck! Keep us posted!!
Good luck! Keep us posted!!
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|B||I|Mark
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a
I had clunking and grinding noise also. The diff oil was changed along with a bottle of the special GM additive. This helped greatly but I also changed the leaf spring bolts and bushings. You can get bushing and bolt kits that are relatively inexpensive...
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t
After changing lube, drive the car in tight circles, going in each direction. In a very short time the noise will discontinue. This sounds crazy, but it does work. If you still have noise....your problem lies elsewhere.
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b
Former Member
Send PMmoro, IL - USA
Joined: 2/11/2002
Posts: 406
Vette(s): 1979 Black coupe. 11256 original, documented, miles on it when I bought it in April of 2000. It now has 13100 on it. Oyster interior, like new. Everything original, everything works, except the clock. Paint has a couple of minor flaws.
I had the same problem with my 79 when I bought it. I added a bottle of GM lube, and drove it about 150 feet, and the noise dissappeared, and has never come back. It must be called Wonder Lube.... 
|IMG|http://www.c3vr.com/member_uploads/601_700/616/blk79.jpg |/IMG|
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b
Former Member
Send PMmoro, IL - USA
Joined: 2/11/2002
Posts: 406
Vette(s): 1979 Black coupe. 11256 original, documented, miles on it when I bought it in April of 2000. It now has 13100 on it. Oyster interior, like new. Everything original, everything works, except the clock. Paint has a couple of minor flaws.
I had the same problem with my 79 when I bought it. I added a bottle of GM lube, and drove it about 150 feet, and the noise dissappeared, and has never come back. It must be called Wonder Lube....
|IMG|http://www.c3vr.com/member_uploads/601_700/616/blk79.jpg |/IMG|
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