need some help for a 1999 F250 Extended cab. 2 8" re in a ported box under rear seat

[Greggk 10+ year member]

the subs require .64 cubes optimal for 27.38 tuned in a ported box according to my bro-in-law. but we are having some complications designing a box. we are looking at doing (2) 8" re's mounting depth is 4", with a Rockford Fosgate 800A2 amp. this needs to neatly fit under the rear extended cab seat. any suggestions? he does design some very hard hitting systems, i actually envy his system in his hummer, but this is just going to be my economy build.. nothing fancy. any help with some measurements for the box?

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[disturbed471985 5,000+ posts]

Anyway to get measurements to see how much room you are wrking with? 2 8's under your rear seats should be pretty easy to accomplish.

 

[Greggk 10+ year member]

i could see if i can get someone to do the measurements, but I am like over 7,000 miles away from my truck.

 

[Greggk 10+ year member]

i should have on estimates only, 18in x 34in x 8in which calculates out to over 2 cubes under that seat