Steering Column Grommet Removal

Today the weather warmed up a bit and I was able to get outside and do some work on the truck. I pulled the steering column grommet out of the firewall. Mine is in really rough shape and I’d like to replace it, though I haven’t had much luck finding a replacement part.
Here’s the engine bay:

The steering column grommet is a boot that mounts into a cone-shaped hole in the firewall and has two holes; one for the steering column and another for the shift linkage column. I’ve seen pictures of some of these in decent shape. They angle downward parallel to the steering column outwards an inch or so. Here’s a close-up of what remains of my grommet. The bottom lip part that mounts into the firewall is intact, but the boot section that encloses the columns is gone.

I used a flat head screwdriver to pry the grommet from the firewall opening.

Clearly the grommet wouldn’t come free without removing the steering and shifter columns, so I cut the rubber with a pair of scissors.

Then I was able to pull it off.

Here are some detail shots of the top and bottom of the steering column grommet.

Here is a close-up of the profile of the grommet where it mounts to the firewall.