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Author Topic: SM465 Clunking Noise  (Read 2820 times)

Offline oldblue76

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SM465 Clunking Noise
« on: September 30, 2015, 04:02:54 pm »
I have a 1976 Chevy K10 w/ 350 and a SM465 transmission. I have a clunking noise when I'm in 3rd gear driving down the road. When I let off the gas there is a clunking noise and then when I push the gas again. The U-joints are fine the the noise is coming from the transmission area. I assume it's the transmission, any suggestions on how to fix it?
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Offline Irish_Alley

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Re: SM465 Clunking Noise
« Reply #1 on: September 30, 2015, 07:21:52 pm »
and its not with any other gears? could it be the trans mount?
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Offline oldblue76

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Re: SM465 Clunking Noise
« Reply #2 on: September 30, 2015, 07:41:59 pm »
Just 3rd. And I would have to look at the mount
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Offline enaberif

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Re: SM465 Clunking Noise
« Reply #3 on: September 30, 2015, 08:43:39 pm »
3rd is a very notorious gear to start failing in a SM465. Might need a rebuild.
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