manual trans plug size

Richard S · #1 05-12-2011, 11:28 PM

I have a 1991 silverado with 5 speed manual transmission. I need to check the transmission fluid. I found the plugs but they are not standard plugs. Does anyone know the size and is it metric or SAE. I measured with verneer calipers and it measures 16.88 mm ,flat to flat, of what appears to be over sized allen wrench. Is this a special tool and where can I find it or does someone know how I can get this plug out without damaging it. Thanks for any help you can give me.

j cAT · #2 05-13-2011, 10:00 AM

Quote:

Originally Posted by Richard S

I have a 1991 silverado with 5 speed manual transmission. I need to check the transmission fluid. I found the plugs but they are not standard plugs. Does anyone know the size and is it metric or SAE. I measured with verneer calipers and it measures 16.88 mm ,flat to flat, of what appears to be over sized allen wrench. Is this a special tool and where can I find it or does someone know how I can get this plug out without damaging it. Thanks for any help you can give me.

use a bolt head fits great...much cheaper ..vise grip on the stud threads...

Richard S · #3 05-13-2011, 11:56 PM

Thanks thats a great idea and a lot cheaper.

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