55.2-59 gmc who has added heat and possibly a/c

[dsraven]

What I would do.
Get a dimension of the under dash unit, make a cardboard mock up tape it under your dash and see how it affects the foot and knee room.

[Missyblue]

Originally Posted by dsraven

What I would do.
Get a dimension of the under dash unit, make a cardboard mock up tape it under your dash and see how it affects the foot and knee room.

Definitly will try. The unit I like sticks out like 3 inches 🤔😩 they have a slimline that supposedly would only be 1.5. But mr48chevy had a good point of the poor middle person freezing out their knees haha. But actually even the gen ii units have 2 side vents but then 2 vents right at the knees again. So only maybe slightly better since the air is split 4 ways and not all 4 vents on the knees haha 🤪