This is my first major trip in the Land Cruiser - 1000 miles to Colorado, over 2 passes, and 1000 miles back to Montana. Can my 30 year old truck make the trip?

I have to say, the trail to and from each pass is a great drive. I expected just a boring gravel road leading up to an epic pass experience, but I actually really enjoyed the whole drive. More technical than I thought. Not difficult or extreme, but just rough enough to make it a good time.