Finally scored an original BT-6428 valve stem height gauge. The gold one is the repro I got from Mondello decades ago.






For those who aren't familiar with this tool, here's the CSM reference.

 

That’s pretty damn cool.
Was this a tool used at Olds Assembly?

Or something every dealership was expected to have?

 

It's a dealership tool

 

I bought one of the Mondello type way back in 1986. I have used it and loaned it many times over the years.