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Classic/Antique Car Repair/1977 corvette diferrential

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Expert: - 4/4/2008


Question
My brother inlaw and i are working to get this car back on the road and noticed humming coming from rear end when moving at any speed. like bad bearings he wants to replace/ or rebuild rear. we also found antifreeze mixed in with transmission fluid after changeing fluid in tranny. any help would be greatly appreciated.

Answer
If you have bad bearings or gears replacement and repair is a good idea. The anti freeze in the coolant could be a problem with the cars radiator. The lower tank on the radiator contains the transmission cooler and that could be leaking. You will need to either replace the radiator or take it to your local radiator guy. Then you will have to flush all of that nasty stuff out of the transmission and hope that there is no damage.
Brad

Classic/Antique Car Repair

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Brad Sears

Expertise

All automotive including antique and collectible. However if the car has been modified I can only answer in general terms and maybe get you pointed in the right direction.

Experience

Automotive tech instructor. Syndicated auto columnist 1970's though the early 1990's. Syndicated auto radio talk show, Ask Brad About cars, CBS Radio 70's through 90's TV Show "Last Chance Garage" 1980's PBS-TV syndicated. Auto instructor for the following companies: Fram Autolyte Holly Carter AMF Ford Motor University Of Conn Blue Hills Technical School Sugar River Technical Center Grew up in a family garage in Needham Mass and turned wrenches from the age of 14.

Publications
Manchester Union Leader, Nashua Telegraph, Motor Service Magazine, Yankee Magazine, Popular Mechanics (Saturday Mechanic early 80's), Los Angeles Times, New York Times, and lots more.

Education/Credentials
More than I care to remember. Basically Franklin Technical Institute in Boston, Northeastern University, Fitchburg State Teachers College, Tufts University, and a lot of factory schools along the way.

Awards and Honors
Moto Award winner. And much more.

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