Thanks for the bump----some wonderful memories recalled as a result of this post.

Jack's Shop was Hewitt, just west of Joseph Campau Avenue and north of the old Dodge Main plant, the same which was razed about 1980. Much of the site of the Dodge Main plant became the site of GM's Detroit-Hamtramck Assembly plant which started up in 1985----this is the same plant which has been in the news of late as GM has announced that the plant (even though it is barely 30 years old) is on it's list for (likely) permanent closure.