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Old 10-16-2017, 01:38 PM   #1
Old57
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My 57 GMC on a 73 K20 chassis

I finally got some progress done on my truck. I got the cab mounted on the chassis, now its beginning to look like something. I'm planning on running tall skinny AT tires, something in the 255/85-16 range, so around 34". That should raise it up a couple inches from where it is now on the stands. It should fit under my 8' doors with this 4" K20 lift. The big block clears the firewall nicely too, so I'll probably use an HEI in place of the Mallory Unilite. I'll be changing to a short water pump, so that should allow for a clutch fan.
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Old 10-16-2017, 02:10 PM   #2
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Re: My 57 GMC on a 73 K20 chassis

One more
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Old 10-17-2017, 05:34 PM   #3
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Re: My 57 GMC on a 73 K20 chassis

Hello Old57
I love these old truck on 4X4 frame. I think they look cool. I had Unilite Dissy on my big block and it would burn out the center element in the cap at about 8000 miles. I would carry one behind the seat so I would not get stranded. Ended up going to HEI
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Old 10-17-2017, 09:58 PM   #4
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Re: My 57 GMC on a 73 K20 chassis

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Hello Old57
I love these old truck on 4X4 frame. I think they look cool. I had Unilite Dissy on my big block and it would burn out the center element in the cap at about 8000 miles. I would carry one behind the seat so I would not get stranded. Ended up going to HEI
Thanks, I really like them set up 4wd. Can't wait to be able to drive it "one of these years". I was planning on using an HEI all along, but I started thinking ahead that I may have clearance problems, so I got this Unilite from craigslist. Now that I see that an HEI will work, I'll try to resell this Unilite and go with the original plan. HEI distributors are not anything nice to look at, but they sure are simple and work good.
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Old 10-31-2017, 09:01 PM   #5
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Re: My 57 GMC on a 73 K20 chassis

I got the core support, inner fenders and driver fender mounted on for a mock-up. Starting to look like a beast.
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Old 11-08-2017, 02:19 PM   #6
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Re: My 57 GMC on a 73 K20 chassis

Looks good!! Nice shop also. looking forward to the rest of the build.
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Old 11-08-2017, 06:22 PM   #7
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Re: My 57 GMC on a 73 K20 chassis

Awesome work! I love this body style and have been trying to find one around here to do what you're doing to it. Your chassis and engine look sweet too!
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Old 11-08-2017, 08:57 PM   #8
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Re: My 57 GMC on a 73 K20 chassis

Thanks guys! I got rid of the drum brakes on the 14 bolt and installed a Lugnut 4x4 disc brake kit.
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Old 11-08-2017, 11:28 PM   #9
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Re: My 57 GMC on a 73 K20 chassis

Very nice!
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Old 11-09-2017, 12:38 PM   #10
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Re: My 57 GMC on a 73 K20 chassis

How are you setting up parking break. I installed disc break on the back of my transfer case.
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Old 11-09-2017, 08:27 PM   #11
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Re: My 57 GMC on a 73 K20 chassis

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How are you setting up parking break. I installed disc break on the back of my transfer case.
The transfer case parking brake is what I was thinking. I'll probably install a line lock in the brake system when I run all the lines for now, just to keep it from rolling when it's running in neutral. Do you have any pics or info on your transfer case brake? I've only seen a couple pics of them, nothing in person or in detail.
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Old 11-09-2017, 10:16 PM   #12
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Re: My 57 GMC on a 73 K20 chassis

Picks of my T-case parking break
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Old 11-10-2017, 07:38 PM   #13
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Re: My 57 GMC on a 73 K20 chassis

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Picks of my T-case parking break
That looks pretty nice! Where did you get it from?
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Old 11-25-2017, 08:53 PM   #14
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Re: My 57 GMC on a 73 K20 chassis

WOW I love the older 4x4 trucks, especially the 50's models they look just mean. That thing is gonna be Bad when it's done...
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Old 11-25-2017, 09:26 PM   #15
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Re: My 57 GMC on a 73 K20 chassis

It's pretty bad right now! Love the parking brake!
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Old 11-26-2017, 11:47 PM   #16
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Re: My 57 GMC on a 73 K20 chassis

Thanks guys, I can't wait to be able to drive it. Also, the parking brake is on DWilber's truck, I was just asking him about it.
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Old 11-26-2017, 11:55 PM   #17
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Re: My 57 GMC on a 73 K20 chassis

Advanced adapters is where I got mine from. they have 2 yoke size options.
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Old 11-27-2017, 10:44 PM   #18
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Re: My 57 GMC on a 73 K20 chassis

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Advanced adapters is where I got mine from. they have 2 yoke size options.
Thanks, I'll check it out
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Old 11-27-2017, 11:55 PM   #19
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Re: My 57 GMC on a 73 K20 chassis

Parts Mike is who Advanced Adpters is they get the parking break from.
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