I have 3 dogs that are heavy shedders.
I use a pet hammock available on Amazon or Ebay for various prices.
I cover the hammock and floor with some old sheets.
Use a pet net between the front and rear seats.
The pet net keeps the dogs and most of the hair in the back.
Every time I travel with the dogs (every week or more often), I take out the hammock and sheet, shake them out and then use a leaf blower to blow the hair out of the truck. Works good and not much work.