Winter is Coming
Time to think about winterizing your Bolt.
A good Tech Tip WINTERIZING YOUR TRUCK including a link back to the Forums for additional tips.
The rear transmission mount does not attach to the case, per se.
It attaches to the torque-tube housing on the rear of the SM-420 transmission. That housing is the same for 3100s, 3600, and 3800s, as long as they had a torque-tube-like attachment.