Door Lock issue & parts availability
So I am new to posting on forums but, I have been fortunate to get a lot of good info from them. I saw this as a cool mod so I ordered what I could from Partszone and I received an email from one of the sales guys that three of the parts were discontinued. 15558837
15558838
15647188
But the salesman was kind enough to send me a list of dealerships in the country that still had shown 1 on hand. I found a dealer, Theilen Motors in Park Rapids, MN that had all three and they were kind enough to dig them up and send them out. So if you are still looking for parts, call up Partszone and see if they can give you the list. Your local dealer should be able to do the same.
I also had three frustrating nights of trying to get the lock to work with the key. I noticed that a few on this forum had mentioned issues. Well I finally figured it out. The handle rod is a little long and slightly engages the latch when bolted in. ( I would have to push the handle down to get the bolt on the door jamb side started and I could hear the latch spring move) Well, I remember my Dad used to yell at me when I had my hand on the handle when he tried to unlock the doors. All of these GM's did that, even back before the 80's. Well if the handle is engaged the door lock mechanism won't work. So if you are having this issue, don't worry your aren't alone, just try to shorten the handle rod by adding a bend in it. That was my problem at least.
Thanks for The awesome pictures and write up & part numbers GMC Burbalade! I would have been stuck without knowing those part numbers.