1992 Chevrolet 1500 Pickup Q&A

1992 Chevrolet 1500 Pickup Question: Is there a way I can "lubricate" the locks?

I can still manually lock the doors from inside and, just barely, lock them using a key. I am afraid of breaking the key off while doing this. Any helps? Will I injure anything by squirting silicone lubricant into the lock mechanism? -
Answer 1
it will help -