I was wondering if anyone has found or knows of a more powerfull blower motor for my 88 F150. It doesn't seem like the fan puts out that much air on high, at least not as much as my '94 F150 work truck.

 

Sounds like you may have a bunch of stuff inside the blower case. Take the blower motor out and make sure it is free of trash..... leaves and other items.

 

There's nothing in there because I took it off to clean the fins a few weeks ago. There were 3-4 leaves but nothing that could cause a blockage. I just didn't know if there was any aftermarket blower fans that were more powerful. Maybe I'll just swap the one out of my company truck