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Rear Seat Removed - Amp Rack / Sub Box

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Old Sep 7, 2015 | 11:03 AM
  #1  
HP52TA's Avatar
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From: Calgary, Alberta, Canada
Car: 89 WS6 TransAm
Engine: LQ408
Transmission: T56 Magnum
Axle/Gears: Strange S60, 4.10s
Rear Seat Removed - Amp Rack / Sub Box

Going to be installing a 10 point cage soon and no longer want rear seats or passengers due to the danger factor.

Curious what others have done after removing the rear seats? The rear seat base looks like a great place for a couple sub boxes, or a panel to mount stereo amps. Let's see what you have built.
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Old Sep 9, 2015 | 12:17 PM
  #2  
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From: Short Summer, VT
Car: 1985 Trans Am T-Top
Engine: 305 TPI
Transmission: T-5 5 Speed
Axle/Gears: 3.42 posi 1LE 10 bolt
Re: Rear Seat Removed - Amp Rack / Sub Box

Build a car for racing, then add pointless weight? Is it really that important your tunes be that loud? I know it's an unpopular opinion, but worth considering.
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Old Sep 12, 2015 | 10:29 AM
  #3  
HP52TA's Avatar
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From: Calgary, Alberta, Canada
Car: 89 WS6 TransAm
Engine: LQ408
Transmission: T56 Magnum
Axle/Gears: Strange S60, 4.10s
Re: Rear Seat Removed - Amp Rack / Sub Box

Not planning to gut everything to build a dedicated light weight race car only. Fully understand the concept, but not the path I am going. If I want a faster ET I will just install a smaller pulley.

Car will be multi purpose which will include a bit of street driving, possibly even travel to/from tracks, which are a couple hours drive away. So yes, rocking tunes are required here. Thinking of building something that mounts to the rear seat mounting locations which could easily be pulled prior to race time.
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Old Sep 13, 2015 | 02:00 PM
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From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
Re: Rear Seat Removed - Amp Rack / Sub Box

Remember that behind the rear seat resides the gas tank and any work you do there should always keep that fact involved. No screws should be protruding towards the fuel tank. No welding should be done to that area with the tank in. No cutting of the area should be done with anything but tin snips w/o the tank removed. That being said, there is no reason to use that area for amp mounting unless it is a big stereo system. You can mount an amp or two in the spare tire area and put a single or double sub in the trunk well. That's the way I did it and am happy with the choice.

Some ideas and info for you:
https://www.thirdgen.org/forums/car-...-build-up.html
https://www.thirdgen.org/forums/car-...ml#post5807936
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Old Sep 22, 2015 | 11:38 AM
  #5  
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From: Connecticut
Car: 1992 Camaro RS
Engine: 5.0L TPI
Transmission: 5-speed
Re: Rear Seat Removed - Amp Rack / Sub Box

I removed my seats and replaced them with a sub box and amps. I made a wooden 2x4 frame utilizing the rear seat mounting bolt locations as my main structural support. The sub box is simply screwed into this frame.



That is an old picture. The seat belts and stuff have been removed now too.
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Old Sep 23, 2015 | 08:38 PM
  #6  
HP52TA's Avatar
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From: Calgary, Alberta, Canada
Car: 89 WS6 TransAm
Engine: LQ408
Transmission: T56 Magnum
Axle/Gears: Strange S60, 4.10s
Re: Rear Seat Removed - Amp Rack / Sub Box

Thanks for the links Tibo.

Nice job Youngs92! That is very close to what I was envisioning. My amps are already mounted in the spare tire location, so they may not get moved. Are you able to remove your box if /when wanted? Mounting location?
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Old Nov 8, 2017 | 11:30 AM
  #7  
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Re: Rear Seat Removed - Amp Rack / Sub Box

Originally Posted by Youngs92
I removed my seats and replaced them with a sub box and amps. I made a wooden 2x4 frame utilizing the rear seat mounting bolt locations as my main structural support. The sub box is simply screwed into this frame.



That is an old picture. The seat belts and stuff have been removed now too.
Man I love this install, I been looking for over a month to find one like this and you are the first. Very nice and clean. Can you show more pictures? Also, can explain a little more how you built it.
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Old Nov 8, 2017 | 11:45 AM
  #8  
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Re: Rear Seat Removed - Amp Rack / Sub Box

Man I love this install, I been looking for over a month to find one like this and you are the first. Very nice and clean. Can you show more pictures? Also, can explain a little more how you built it.
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Old Feb 3, 2018 | 10:51 PM
  #9  
rushtk's Avatar
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Joined: Mar 2012
Posts: 115
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From: Athens Ohio
Car: Teal 92 Z28
Engine: 5.7
Transmission: 700r4
Axle/Gears: 3.73
Re: Rear Seat Removed - Amp Rack / Sub Box

Originally Posted by Tibo
Remember that behind the rear seat resides the gas tank and any work you do there should always keep that fact involved. No screws should be protruding towards the fuel tank. No welding should be done to that area with the tank in. No cutting of the area should be done with anything but tin snips w/o the tank removed. That being said, there is no reason to use that area for amp mounting unless it is a big stereo system. You can mount an amp or two in the spare tire area and put a single or double sub in the trunk well. That's the way I did it and am happy with the choice.

Some ideas and info for you:
https://www.thirdgen.org/forums/car-...-build-up.html
https://www.thirdgen.org/forums/car-...ml#post5807936
incredible write up!!
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