Gonna be doing my first big kid drive in my car soon, Vancouver to kelowna for a wedding, 76 monarch

This drive I'm doing is going through the rockies, wish me luck

Within the last 8 months she's got new
Brakes and lines
Carb
Thermostat though i forgot to fucking drill the hole
Alternator
Plugs and wires
Muffler some exhaust pipe
Fresh coolant and oil all within 4 months
Dif fluid change,fresh change from the FACTORY administered fluid
Had a shop look at the transmission, beyond my pay grade to bother with transmission stuff, shop said it's "fine"

My next step, as a better safe tha sorry measure is a transmission cooler, I've driven this route before and theres been "modern" cars on the side of the road from overheating


I know it might be "overkill" but I'd rather not lose this old hag, going to donthe transmission one first


Anything else you guys think i should give a look? I'll post pics later