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05-10-2018, 08:29 PM
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#1 |
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Registered User
Join Date: Oct 2013
Location: Hawaii Oregon
Posts: 12
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1969 gmc 427 6500
 Back at it, recently picked this beauty up. Starting to work on it. Runs good but needs some TLC. First thing will be the master cylinder and then upgrade to a dual circuit master cylinder for extra safety. I have a feeling finding parts for this will be difficult. Anyone know of any sources? Progress pics will be updated here @69GMC6500 |
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05-10-2018, 08:38 PM
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#2 |
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Senior Member
 
Join Date: Oct 2009
Location: Godley, TX
Posts: 17,975
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Re: 1969 gmc 427 6500
Nice looking truck! So it has a single res master on it now? Duals were standard on light duty in 67, was there a different rule for the big 'uns?
What are your long term plans? |
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05-10-2018, 09:08 PM
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#3 |
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Registered User
Join Date: Oct 2013
Location: Hawaii Oregon
Posts: 12
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Re: 1969 gmc 427 6500
Thanks... Yes single cylinder with air assist. It’s quite different. I rebuilt a 72 a few years back and it’s completely different.
This is also 5 speed with a split shift. Long term goal is to rebuild and use for hauling. I’ve already hauled a few pallets... Worked well, but I need to replace the wood deck. |
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05-10-2018, 10:02 PM
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#4 | ||
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Registered User
Join Date: Jan 2011
Location: Townsend MT
Posts: 1,725
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Re: 1969 gmc 427 6500
Quote:
As for parts, find a heavy truck parts supplier for any drive train parts - I bet they will be readily available.
__________________
1966 F250 4X4 416 1972 K20 350 4 OTF Quote:
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05-11-2018, 03:12 PM
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#5 |
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Registered User
Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,405
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Re: 1969 gmc 427 6500
That's a TRUCK, not a pickup!!!
Some parts stores may be able to help you. Not the kind that has nerds manning the computers that were making slurpies at a convenience store last week though... You may need casting numbers off of some parts like master cyl, wheel cyl's and such. We have a local owned independent NAPA where I live, they sometimes can perform great feats!!! |
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05-11-2018, 03:42 PM
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#6 |
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Registered User
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,391
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Re: 1969 gmc 427 6500
Welcome from Eastern Oregon ! Nice GMC ! If you google your will find a forum devoted to just Big Trucks, one ton and above, great resource...good luck
__________________
71 C-20 07 Magnum RT AWD |
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05-11-2018, 04:30 PM
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#7 |
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Registered User
Join Date: Oct 2013
Location: Hawaii Oregon
Posts: 12
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Re: 1969 gmc 427 6500
If the single fails, you lose all breaking ability, air assist won't help at that point. Just want to got that route for modernization and safety, especially when hauling a load.
Thanks for the tip on heavy truck part suppliers. |
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05-11-2018, 04:31 PM
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#8 | |
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Registered User
Join Date: Oct 2013
Location: Hawaii Oregon
Posts: 12
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Re: 1969 gmc 427 6500
Quote:
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05-11-2018, 04:35 PM
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#9 | |
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Registered User
Join Date: Oct 2013
Location: Hawaii Oregon
Posts: 12
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Re: 1969 gmc 427 6500
Quote:
 But I can haul your pickup with it I found the shop manual and wiring diagram book on Ebay. It's already been a huge help. Thanks for the tips on sourcing parts etc. |
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05-11-2018, 04:52 PM
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#10 |
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Registered User
Join Date: Feb 2014
Location: Pocahontas Arkansas
Posts: 684
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Re: 1969 gmc 427 6500
Ive owned lots of those type of trucks over the decades. The problem lies in the fact that they are not driven daily. and the hyd brakes dry out. and they are expensive to work on. The brake booster cost around $400.00. and they are hard to find. The last one I replaced I had to send my old unit off to get it rebuilt. My current C65 has full air brakes. If you got enough air pressure to release the brake chambers you will have brakes no matter how long its been setting. Ive also owned a couple of those air over Hyd rigs and they weren't so great also.
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