I've reworked the doors on my '50 3100. I can't get the passenger door to lock. I can lock the door from the inside and no matter what I can open the door with the outside handle. I also installed a new lock and as I've read here the new locks are junk. No way I can get the new lock working. I would be happy if I were able to get the inside lock working. I've had this thing apart several times and no matter what, when the door is locked from the inside the outside handle will turn, unlock and open the door. Has anyone else dealt this issue? Thanks.

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