Anyone got a match ???

I have seen the "no spring back" before, or "weak" spring back on these before. The spring itself is part of the ignition switch (NOT the part that you put the key in, that actually has nothing electrical to do with)
Now a days I look for old stock, whether NOS factory or an aftermarket brand. I just had to replace the ignition switch in my 85 D150 for same issue.
I bought 2 "standard" ones from Ebay, and it's obvious they have been on the shelf for years.
One for now and another for a spare "while the gettin was good"
If tilt wheel ignition switch is different from non tilt.
With a tilt column there is a rod that goes a ways down the column and the actual ignition switch is a "slide switch" about Midway down the column, just under the steering column trim piece.
For a tilt column the steering wheel doesn't have to come off to change the ignition switch.