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Rear End Vibration...

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MgKid1974

MgKid1974

Senior Member
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I have a 1974 MGB, and whenever I let off the gas and coast, the back end of the car vibrates a great deal. I jacked up the car, double checked everything to make sure the nuts on the U bolts were tightened and everything looked in place. The axle isnt low on oil, and neither is the tranny...so at this point I'm perplexed. I've owned the car for 6 years now and never have had this before...any tips or help would be great!
 
lbc_newbie

lbc_newbie

Jedi Warrior
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I had the same situation. I took my drive-shaft out, brought it to a shop, had it balanced and a new yoke and u-joint installed on the rear and all is perfect now. give it a try. I'm betting they'll find something wrong on your drive shaft. Another thing you can do is check the play in your hub bearings to make sure there is no slop.
 
B

bob67bgt

Jedi Knight
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Sounds like the exhaust is very close to the body at some point and making slight contact when decelerating. Been over any speed bumps lately? Bob
 
B

Bruce74B

Jedi Knight
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I was just going to say that I noticed a noise on decileration after I changed the muffler out for one I bought on EBAY. It turned out that the exhaust pipe shifts and vibratges off the bottom of the firewall. I plan to replace the muffler with a stainless pipe sometime and enjoy a better noise. good luck!

Bruce :driving:
 
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