18 smd box help.

[bigaltexas]

alright well i got a 18 smd. and a box tuned to 26hz. and i love it and all.. but. i like some higher notes too, around 35-42,

can anyone help me? i think my cutouts were off by 3/4 a inch and more..

currently, i have;

24x35 top and bottom

34.25x21.5 left side

33.5x21.5 right side

24x21.5 back

21x18.25 front

21.5x28.5 port (piece of wood going into the box,) port should be 5 inches wide if im not mistaken

or could someone design something for me? sub will be behind the passenger seat, (extended cab silverado), facing up, and the port will be on the driver side, facing the rear ext cab door.

current dimensions are 24x23x35..

someone check my cutout sheet or throw me something better to make this bang on the young jeezy songs and others.

thanks!