The finish is quite good on both my stock, small mirrors, and both are date coded. I notice that in their most-recent catalog, now sells a convex right side large 77-77 replacement mirror.
Do the mounts on these 77-87 larger mirrors match the curve on the upper part of a a 74 door? LMS lists them to fit 77-87, and their 77-87 doors are a different part number than their pre-77 doors. Thanks.