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Old 02-12-2014, 06:30 PM   #1
bigguy
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86 GMC, Porterbuilt Mild front and rear

Figured I would finally post what I have been working on. The story goes that I bought my 86 GMC while on leave in 2009. It sat in my fathers garage for the next year until I could come back and get it. When I did get back, I did a mild build on it which included a Mcgaughy's 4/6 drop with big brakes, 20/22" Coy C5's, and a 5.3L/4L60E swap. I drove daily for a few months before getting deployed again and then it sat once at my fathers house. Fast forward to late 2012 and a separation from the Corps and it's build time! Name:  001.jpg
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So for the second go around, I decided to run a Porterbuilt Mild dropmember front and rear. I built a cammed 6.0 LQ9, Performabuilt Stage 2 trans, 3.73 gears with eaton tru trac. I figured I would post some of the issues I have run into as well, mainly steering linkage and headers.

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Old 02-12-2014, 06:36 PM   #2
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Re: 86 GMC, Porterbuilt Mild front and rear

A few build pictures
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Old 02-12-2014, 06:39 PM   #3
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Re: 86 GMC, Porterbuilt Mild front and rear

More build, 6.0L, raised bed floor with liner.
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Old 02-12-2014, 06:44 PM   #4
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Re: 86 GMC, Porterbuilt Mild front and rear

Fabbed ECM mount. Headers are Hedman Muscle rod. I had to notch the dropmember to get the correct angles for the steering. The drivers side header has the front tube rerouted to clear the joints.
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Old 04-12-2020, 01:04 PM   #5
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Re: 86 GMC, Porterbuilt Mild front and rear

Quote:
Originally Posted by bigguy View Post
Fabbed ECM mount. Headers are Hedman Muscle rod. I had to notch the dropmember to get the correct angles for the steering. The drivers side header has the front tube rerouted to clear the joints.
Attachment 1213729

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How did you connect your first u-joint at the steering column? Did you cut a piece of steering shaft stock and mount it in the residing location, and then mount the u-joint to that?
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Old 04-12-2020, 01:36 PM   #6
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Re: 86 GMC, Porterbuilt Mild front and rear

Quote:
Originally Posted by G-NUT View Post
How did you connect your first u-joint at the steering column? Did you cut a piece of steering shaft stock and mount it in the residing location, and then mount the u-joint to that?
No. The factory column has a DD shaft end already. These columns usually have the DD end or a splined end.
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Old 02-12-2014, 06:54 PM   #7
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Re: 86 GMC, Porterbuilt Mild front and rear

Looks sick , will nice to see more of it
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Old 02-12-2014, 09:47 PM   #8
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Re: 86 GMC, Porterbuilt Mild front and rear

Love it!
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Old 02-12-2014, 10:40 PM   #9
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Re: 86 GMC, Porterbuilt Mild front and rear

sweet build bro!
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Old 02-13-2014, 02:03 PM   #10
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Re: 86 GMC, Porterbuilt Mild front and rear

Thanks guys! Really appreciate your comments
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Old 02-13-2014, 03:22 PM   #11
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Re: 86 GMC, Porterbuilt Mild front and rear

Nice, I have the same year Chevy. I'm looking to drop in an Eaton True Trac as well, let me know how easy it is to install and how you like it!

Semper Fi!!
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Old 02-13-2014, 03:49 PM   #12
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Re: 86 GMC, Porterbuilt Mild front and rear

I haven't had a chance to use it yet. The installation was pretty straight forward. I used a nitro gear rebuild kit and it's the stock 10 bolt. You will need a press for the bearings and an in/lb torque wrench.
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Old 02-13-2014, 07:09 PM   #13
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Re: 86 GMC, Porterbuilt Mild front and rear

awesome build man im looking in to porterbuilt stuff now my self
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Old 02-15-2014, 11:34 AM   #14
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Re: 86 GMC, Porterbuilt Mild front and rear

Thanks! Honestly, if I were to do it again, I would just go with the extreme version. It would be less fab and fitment issues.
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Old 02-15-2014, 12:36 PM   #15
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Re: 86 GMC, Porterbuilt Mild front and rear

nice!
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Old 03-13-2014, 05:07 PM   #16
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Re: 86 GMC, Porterbuilt Mild front and rear

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Header modified to clear steering.
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Old 03-13-2014, 05:53 PM   #17
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Re: 86 GMC, Porterbuilt Mild front and rear

Headers looks good
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Old 03-13-2014, 11:57 PM   #18
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Re: 86 GMC, Porterbuilt Mild front and rear

Looks good! I'd like to hear that beast.
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Old 03-14-2014, 12:04 AM   #19
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Re: 86 GMC, Porterbuilt Mild front and rear

Like the look of the setup, headers fit nice, should be a real nice ride.
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Old 03-14-2014, 12:21 AM   #20
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Re: 86 GMC, Porterbuilt Mild front and rear

Great looking build so far.Good job modifying the headers to bit.
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Old 03-14-2014, 09:55 AM   #21
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Re: 86 GMC, Porterbuilt Mild front and rear

As soon as I can get the exhaust hooked back up, I'll get a video of it running.
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Old 03-27-2014, 06:39 PM   #22
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Re: 86 GMC, Porterbuilt Mild front and rear

I sent you a PM, and was wondering if you could get a picture and maybe some info on how you modified the inner frame support for the steering shaft clearance? I'm at that point and it would be a great help.

Thanks, Wade
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Old 03-31-2014, 05:25 PM   #23
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Re: 86 GMC, Porterbuilt Mild front and rear

I'm at a crossroads right now and need opinions. Should I shave and repaint the firewall? Or, make a panel to resemble the a/c heater and put some undercoating back to look kinds stock?
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Old 03-31-2014, 06:37 PM   #24
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Re: 86 GMC, Porterbuilt Mild front and rear

Depends on the look your going for. I've redone so many things I've lost count. Thinking I'd be happy with it and not dough what I really wanted to do in the first place. If you like the look of a smooth newly painted firewall, do it now, or you'll be redoin it later. It's gonna be super nice either way!

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Old 05-15-2014, 02:43 AM   #25
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Re: 86 GMC, Porterbuilt Mild front and rear

Do you have any pics of you raising the bed floor? Or closer up pics of the mounts??

Truck looks amazing.
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