So for about $25 I came across this solution. Many of our OE are worn and this is just cheap. The part is marketed as a Kenworth shift boot. Some trimming was required. So pictures:

 

Nice find. You have a link to where we can find this?

 

Just an eBay purchase. Many choices of vendors.

 

Seems like it will work nicely!!

 

Model number maybe off the box?

 

Looks a lot like this one:

 

looks like the part number or reference is "68D885 " at least that brings it up in eBay. At least that's what I used. Toruki's example is more accordion shaped. Not the same product, but depending on dimensions, it may work. I can't confirm that.