the vent assembly goes in first, but not attached, then with the vent leaning inward a bit, slip the main window in .... there's pretty good instructions in the shop manual here, especially see figure 19

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics