UPDATED ... Also I did not know this post went back to 2013 ...
I'm in the process right now of updating and restoring my 85 Blazer working on this exact issue.
As stated through out the thread. The Glove Box Lock does not LOCK .. and has a little hole in the center of where the key slot would be (See Pictures Above). The Hold down Nut is shorter than the console hold down nut I am betting based on the above posts.
I put new keys on Doors and Tailgate and want my Console Lock Keyed the same and I was thinking about getting a locking lock cylinder for the Glove Box keyed as well.
As mentioned earlier you have to get an UNCODED Lock Cylinder that will accept your Round Head Door Key ... in my case my Door Key Code is "H"
On EBay there are a ton of Uncoded Lock Cylinders, it's a gamble to see if one fits your Key Code.
In researching where GM Pauls got my lock set I found out it was PYCL Classic Locks / MAX Performance in Landsdale PA.
I spoke to technical help and found out that Lock Cylinder P/N 593051 was uncoded and would fit my "H" Door Key ... It is a the Locksmith now being Keyed to match my Key.
Uncoded Locking Cylinder (593051) was found on page 35 of 76 in the PYCL Classic Lock PDF Below.
Locking Cylinder Case (PY183U) is found on numbers Pages in Catalog
When I got the Uncoded Lock Cylinder in I tried my Door key and it slide in just fine so I knew it would be able to coded to match.
I did buy two new Lock Cylinder Cases P/N PY183U ... I am thinking the LOCK CYLINDER and LOCK CYLINDER CASES are going to be the same with the difference being in the LOCKING NUT that holds the Cylinder case to the respective lid / top.
I ordered two Uncoded cylinders so I could in fact use one of them in my Glovebox if I so choose or I can leave it original with a non key locking glove box lock
I did not have any problem removing the lock cylinder from the Glovebox door ... following You Tube videos and getting it fully disassembled for painting.
However, I could not remove the lock cylinder from the console lid as they are a son of a gun and I spent nearly 4 hours on it and messed it up. (Not an issue, since I was going to replace the lock cylinder). The Lock smith removed it for me ... I do not have pictures of the two Nuts at this time as the console top is not available at this time for me to get to.
Once I have the Console Lock Cylinder Nut, I can post a picture of the two nuts so we can see the difference in length.
Max Performance is a wholesaler but the talking to them for technical service is a real help.
Once you have your part number you can call one of the stores on where to buy. I bet GM Pauls could order this for you.
AND HERE YOU GO FROM AMAZON ....if this is your lock cylinder
As soon as I get the respective Lock Cylinder Nuts I will post a picture
UPDATED:
I did some more research this morning and found that the Strattic Aftermarket Solutions 1987-1988 B/S catalog confirms a couple of things ...
Go to Pages 18-21 of 23 in the PDF Below and on Page 21 there will be information on the Glovebox and Storage / Console box ...
Mine is an 85 so I am not sure of what I bought will work on the Console, it will work on the glovebox .
The Lock Case show to be the same and the most interesting is the Lock Nut show the same part number if you look at the C/K information on both.
I may have to get another UNCODED LOCK CYLINDER as I bought a 593051 and the 87-88 catalog shows that the console uses a 593053 UNCODED LOCK CYLINDER .
I would point out that he 593051 I bought did match up visually to the Lock Cylinders that were removed from the Blazer Console so I assumed they would work ... I will know when I reassemble everything.
More research on this:
New information on 10-28-23
The Glovebox Unkeyed Number by B/S or Strattec is 593051 and is a middle version of the Lock Cylinder
The Center Console Unkeyed Number by B/S or Strattec is 59053 and is the longer version.
The picture showing the length less than 2" is the NON-Keyed Glovebox Cylinder
The Picture showing the Length to be 2" is the Keyed Console Cylinder.
The Picture showing them side by side the Console Cylinder is to the left
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