find them all over ebay, you'll need shallow mount subs unless you want to move your seat forward few inches

 

how do i move my seat forward?

 

you have to redrill the stud mounts in the back and add washers to the bolts in the front

 

any how to's?? kinda like to do this, just to match sure my sub doesnt hit the seat....

 

I had a local audio shop build a box for two 10s in my crew cab, and it has a power sliding rear window.

 

how much did that run ya, do you have any pictures of it?

 

If i remember right i paid like 110 for it. This is the only pic i have of it.

 

Mines an 01 so idk if it's different but I have to jl tens in a box I built I'll snap some pics tomorrow

 

here is few options on ebay man,if im not mistaken i do believe this box is for crew cab with power rear window,
FORD F250 F350 04-09 DUAL 12" SUB BOX TRUCK ENCLOSURE | eBay

if you dont need the extra room in the back you could run a single 12 like this one, Q-Logic 00-07 Ford F250/350 Super Duty Supercab 12" Sub Box | eBay

 

yes you can do two twelves or two tens or even two 13.5 but they have to be shallow i had 2 10 inch jl w3 s which are pretty deep and they didnt have a chance in fitting... if you do this you have to go with a w1 or maybe a w2 if your going with jl or a p1 if your going with rockford which means it wont be as loud but they will fit the deep ones wont

 

Yeah I have Rockford p1's in mine.

 

yea i had three p 1s in my chevy 2500hd and it was pretty loud but if your going all out with this and want the best sound get 2 jl 13.5. they sound awesome and its plenty loud for anyone thats what my buddy has and it sounds sick

 

I built my box. Got two shallow mount pioneers 12" in it. Didn't like the look of the ebay ones.

 

i built my OLD box in my other truck and it had 2 12's in it. if i was gonna do it all over again i would buy one off ebay.

 

if there is a will there is a way i have 4 polk mm 10's and it sounds killer.

 

Would that sub box the piece covering the window motor? and that picture didnt load for me

 

I"m new to the powerstroke forums being a new owner of an 06 f250. But the old audiophile in me brought me here first. I have been installing stereos in vehicles for the past 20yrs and where there is a will and some skill, anything is possible. I just installed 2 12" polk mm1240 dvc's in my buddies 01 f350 crew cab. Both are powered be a Massive Audio N2. The rear space behind the back is literally the same. The box I made had almost 1cuft of airspace per driver. If I remember right. I have the drawing and inside measurements on a piece of paper somewhere at home. The main changes were to the rear seat brackets. Under the rear part of the seat bracket, we added about a 1" spacer and machined out the top of the bracket where the bolts go through about 5/8" to slide the seat forward. You'd have a hard time noticing the changes, the woofers dont hit the seat and it sounds pretty damn good. Hope this helps a bit.

 

They can fit. I have two Kicker L7 tens behind my seat WITH grill covers. Its a very, very tight fit but I did it without any modifications. Also, my room mate has two 12 JLw3s behind his, no mod either.

 

Got my box from here
superduty112 fit really well.

 

how did he fit w3 12s in there??? i couldnt even get two w3 tens in mine?