All parts vendors I've shopped only sell a key start ignition switch for '55-'56 Task Force trucks. I bought one for my '58 and see that truckandcarshop.com sells an ignition pigtail adaptor that is on 3-4 week backorder. I haven't had any luck with technical questions with them in a long time. Anyway, I'd sure like to make one but the catalog picture isn't totally difinitive to me. Have any of you '57-'59 V8 truck owners experienced this? Here is the picture, 1st item on the page. Pigtail