I think the cut-off is 1986.Originally Posted by S.B.
I have a 1970s vintage S&W 39-2 that broke the safety lever (sheared). S&W repaired it and it cost me ~$100 including shipping. So they will fix it (if possible) but will charge for work on older guns.
NOTE: I've had some 1990s-2000s vintage S&Ws that needed some TLC. S&W paid shipping and repair costs for those guns.