Thanks for sharing that, and I’m sorry you ran into that, I know that’s frustrating. Even though the lock is stamped 038, those cores can’t be removed with the matching key alone. To swap or remove them, you’ll need the universal change key, part # TH42BJ, which is designed specifically for pulling those lock cylinders out. Before going the route of breaking the locks, that change key should let you remove them cleanly and install the correct cores.

It sounds like you have an older model roof rack, which would be the reason this key would not fit, even if it is the same number on the lock core. The solution would be to get a universal change key to take out the entire lock core then get a new style replacement lock core with a pair of keys. Here are the parts that I am referring to: item # TH450200.

I am glad we had the right key for you Robin! I keep a set in my glove box, and an extra set at home, I too like to misplace things. Did the lost one show up yet? I feel like they always have a funny way of doing so after we get the new one.

Im so glad they key worked for you! What kind of box is this?

You're very welcome Bill, I'm glad we could help!

Still works perfect!

I couldnt find a number on the bottom rack and as I didnt need it right away, I will take to the locksmith to open it and install a new barrel