Ive been doing some searching on here, and I havent found a definitive asnwer for this question: How much room is there under the rear seats of a 1998 ext. cab? My buddy will be making me some seat lifts so I can go buy a basslink. Does anyone know how much room im going to need so I can give him some idea as to what he's making? The basslink says its 9.5'' tall when mounted horizontal.

The reviews for the basslink are glowing, and I dont want booming bass...but if its not going to fit without a 5 inch lift or something crazy then ill have to find another option.