86 6.9l stack kit?
Posting Guru
Joined: Jan 2010
Posts: 1,665
Likes: 4
From: Terre Haute, IN
Nope. I made the brackets myself for the mirrors and the lights are cheapies from Harbor Freight.
The old bed (factory) was pretty much destroyed and i needed a bed so i made that one. It cost me about $200 in all to build it and its lasted a couple years now...
The old bed (factory) was pretty much destroyed and i needed a bed so i made that one. It cost me about $200 in all to build it and its lasted a couple years now...
Logistics Pro
Joined: Sep 2007
Posts: 3,737
Likes: 179
From: Western Mass
Don't want to hi-jack... but how did you make the mirror brackets? I picked up a set of that style mirrors (heated too!) for cheap, but still trying to figure out what to do for the brackets, as they're more than the mirrors were every place I've looked!
Posting Guru
Joined: Jan 2010
Posts: 1,665
Likes: 4
From: Terre Haute, IN
I took measurements off of an F700 for the dimensions and them copied them with 1/2" electrical conduit. I used a press and two pieces of square tubing to flatten it where it is bolted to the truck and where the mirror hoops are. The brackets are super solid. Only the door flexes... 
Cargo Master
Joined: Oct 2005
Posts: 2,298
Likes: 27
From: NJ
Run whatever size your downpipe is, likely 3". Just need a couple sticks of 3" pipe, a mandrel 90* bend, and a couple hangers. There's no reason to have two stacks, it's more complexity and work for no gain as the restriction is the bend on the downpipe right off the turbo. Don't forget the snorkel up to the same height as the stack and be sure your intake is sealed up real good so you don't hydrolock it. You'll also want to be sure you don't have any oil leaks where water can get in, and vent your crankcase, diffs, trans and tcase up high as well.
New User
Joined: Sep 2017
Posts: 4
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I went dual 3.5 on my 79, duals sound waaaay better than a single. If you think you want straight pipe, you dont. It is retarded loud, you will get pulled over, daily. Sounds amazing, painfully long lasting erection amazing, but your ears will ring, and you will get tickets.
New User
Joined: Sep 2017
Posts: 10
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From: Grants Pass Oregon
Search Ebay For stack kits that's where I bought mine for 169.00 bucks its a three into 4 out but you will still need to fab up some stacks or buy them. Right now I am working on fabbing up some stacks made from 5x5 .120 wall square stock just because I haven't seen any square stacks around and the will eventually be integrated into my headache rack I am building also
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