Good Humor Truck, Installed the SM420 trans. I did have a problem after I had it overhauled.Trans on the jack stand, the trans wouldn't go in the bell housing.I saw the throw out bearing wasn't sliding on the snout sleeve.Saw a hair line crack, actually two of them. Called the trans shop they had extras so I replace it. I think the hot tank expanded the cracks during cleaning.After that it went in like butter.

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Good Humor Ice cream
1955 1st series Panel Truck