Box build for Avalanche, replaces rear wall

[Fiercetimbo17 10+ year member]

So I built 2 small sealed boxed for a local guy a month or so ago for his new avalanche, installed 2 p3 shallows and he was happy for the time being, however he got the upgrade bug.

Decided he wanted to go with some w3's so I convinced him to let me build a box the replace the removable wall.

So here it is, I did not get alot of pictures because i only had a couple hours to do it, (woke up late as shiz again) so only remembered while i was spray painting the back. I wanted to do it in bedliner but he did not want to pay the extra $20 and i did not want to do it bad enough to do it for free.

The back that will be inside the bed all primed to seal and then halfass spray painted.

If you ever need to spray paint a large area i suggest one of these, they are like 4 bucks and keep you from killing your finger and getting paint all over it.

paint did not come out as nice as i would have liked but o well, it was very windy and this is 99 cent spray paint.

The front baffle is a cutout of the wall it replaces, flush mounts the subs.

Box is 2.87 tuned to 32hz, ports are rounded and everything just no pictures.

The blocks are for mounting of the box to the factory locations.

Ill snap some pics of it installed, should look pretty sweet.

Click to read more...

 

[99grandprixGT 5,000+ posts]

looks great, good work.

 

[mklett33 10+ year member]

Looking forward to seeing it installed gotta love that the avalanche has the "factory blow through option" lol

 

[bones22 5,000+ posts]

looks almost identical to the one i was doing. aside from the box being smaller than mine was

 

[Fiercetimbo17 10+ year member]

Got some pics of it installed

 

[wasted ink 10+ year member]

Nice work.. Looks stock

 

[jdawg 5,000+ posts]

did you primer the wood first?

 

[Supergumby5000 5,000+ posts]

nice build!

Some pointers. Im willing to bet that tonneau leaks (they warp with barely any weight on them, mine warped from having sitting snow on th em). Cover the back of that box in a shitload of primer and some form of high gloss paint, or bedliner or something.

does the gate want to rattle at all at the gate latches from the driver excursion, or is it pretty snug?

 

[DonH 5,000+ posts]

did you primer the wood first?

no he didnt, there is no way. looks like the wood soaked up alot of it. but still sick box bro. nice oem look.

 

[Fiercetimbo17 10+ year member]

I did a light coat of primer, with mdf you need alot more than a light coat. He said he cargo cover doesnt leak but i told him to check it next time it rains and if its leaking were going to need to seal it with some bedliner and he agreed, so we will see what happens.

 

[bones22 5,000+ posts]

I did a light coat of primer, with mdf you need alot more than a light coat. He said he cargo cover doesnt leak but i told him to check it next time it rains and if its leaking were going to need to seal it with some bedliner and he agreed, so we will see what happens.

it does and will leak

i used rubberized undercoating on my box. i never finished the install though //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[George_V. 10+ year member]

Clean install. Nice job!

 

[Supergumby5000 5,000+ posts]

it does and will leaki used rubberized undercoating on my box. i never finished the install though //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

//content.invisioncic.com/y282845/emoticons/word.gif.64b12e39f936af3b4fff38a1c0bd0244.gif

 

[Fiercetimbo17 10+ year member]

it does and will leaki used rubberized undercoating on my box. i never finished the install though //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

Thanks for the info, im going to call him and have him come by and pour some water on it and show him it leaks then.

Where do you get bed liner from? I can get it at autozone for $35 a can but like i said he doesnt wanna spend the extra money. How about flekstone?