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M46 Drain plug size 200

I found a used M46 transmission and was told it came from a '86 240.
The case is cast iron opposed to the cast aluminum one it is replacing.

A PO stripped the drain plug thread. I think I can chase out the case with a tap but want to verify the thread size.
It looks like 18mm x 1.5 pitch. Does that sound right? I don't want to just run the tap through and then find out it was the wrong size.

It is not the same size as the aluminum case drain plug...I tried already.

Thanks
--
'60 544, '68 220S, '70 145S, '72 144E, '86 745T






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New M46 Drain plug size [200]
posted by  alschnertz subscriber  on Mon Aug 7 08:46 CST 2006 >


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