I purchased and installed this unit.
www.ClassicParts.com
item # 68-991A
$159.95
While this unit does a fantastic job heating the cab there are a few things that arent right.
1-the fan is single switched ...either off or full blow
2-when ya close the doors on the unit for defrost the air volume that is pushed to the defrost vents is very lame , reminds me of the old VW Beatles.
So I would not recomend this unit for anyone living in the northern states and especially in the snow belt as i dont believe it will produce enough defrost to let you operate a daily driver in the dead of winter.
Tim



1952 Chevy Shortbed

Photos in Photobucket

If It Aint Broke Fix It Till It Is!