There was a part number change about 18 months ago when an upgraded version replaced the old. The design is in place in a LOT of GM products. The old style looks like this --

while the new style looks like this ---

Notice the additional webbing. The lack of support allowed the wells the spread and the lugs pull out. This is what I did to one of the new ones. That is JB Weld stuffed in there.

Lambo doors (should be called Kambo doors for Sky's and Sols-- get it?

) are probable more than a plastic door handle can tolerate.