Just finished installing the new Dorman door latch, not a terrible job but not a piece of cake either, No problem have to drill out a little bigger the lever the 1/4-20 at lower bottem 1/4 drill just a tad, other arm that goes to inside door opener till rod fits tad, instead of welding lock device I used a spring,easy. When I finished I had to adjust the flat bar that goes to dead bolt and lower lever, when installing door latch the blackwedge piece holds it in place latch does not have anything that hols it into place, so it could be up or down or side to side when you tighten wedge, no biggie now I know. works perfect smooth and quiet. I just for the heck of it I made an access on the door panel, And a pull rope that’s is inside door landing light, tested works perfect, hopefully I will never need either one.