1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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Does it vary at all with what gear it is in or temperature? The only thing that comes to mind would be a hydraulic transmission noise being transmitted into the rear driveshaft?
I have heard internal leaky ATF seals under transmission oil pressure make buzz or whistle noises. Try to follow the source of the noise to where it originates.
I have heard internal leaky ATF seals under transmission oil pressure make buzz or whistle noises. Try to follow the source of the noise to where it originates.