86 5KTWQ Shifter Boot

[Steve Sherman]

This admittedly is a nit, but it is annoying.  The shift lever boot, the
leather thing, keeps coming loose during use.  The plastic frame at the
bottom unsnaps from the tunnel base.  I can snap it back in, but it
comes loose again within a day or so of driving.

I've looked at the catches on the frame and all seem to be in good
shape, although no doubt worn due to the frequent coming out and being
pushed back in.  No obvious reason for this coming loose.  I've thought
it might be the leather shrinking over time and becoming too tight, but
that's had to say without a new one to compare to.

I've tried silicon RTV to "glue" it in, but that only helped for a week
or so.  Any clever ideas of how to fix this (short of permanently gluing
it down).

TIA