1960s 1969 Door Strikers

[Cadillac Nut]

None of the 4 doors shut like they should on my '69 they are a little 'loose' when closed or have to be slammed, do the door strikers wear out on these cars?  Just wanted to get some opinions before I start changing strikers or taking latches apart. 

["Cadillac Kid" Greg Surfas 15364]

Are the "insulators" still intact?
Greg Surfas and

[Clewisiii]

Often it is the hinges saging causing the latch and striker to be out of alignment.

[The Tassie Devil(le)]

Have a serious look at the locks themselves as well as the hinges.   They do wear out.

Before and after shots of the lock reconditioning.

Bruce.

[Cadillac Nut]

One has a hinge sag issue but the others do not.  I replaced the front door latches with good used ones I lubricated and tested the replacements they seemed to be fine, rears I've never touched.  Insulators, you mean the part that spins on the striker shaft? 

["Cadillac Kid" Greg Surfas 15364]

Yes,
the cylinder (plastic) that goes over the shaft
Greg Surfas

[Cadillac Nut]

If there's supposed to be a piece of plastic on that shaft it's missing from all of mine