To tell the difference from early first design 1955 Distributor model #1110855 that will always have a 54 date code is easy to spot (right one in pic.) you can see that the hold down plate SLIPS in to it, where the second design same #1110855 Dist does not need to be SLIPED in. It's dates will be the 55 year. Both Dist. Use the same vacuum advance #1116085. Most know that the 55 used two design Carbs early and late,few know that the Dist is also. This early Dist. Is getting vary hard to locate so if your the "early" 55 engine that has 54 date codes, you need this to be original.
I don't know weather the JM mentions this.
I don't know weather the JM mentions this.
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