Complet upgrade list of questions bullet proof modernize GMC [message #218845] |
Sun, 18 August 2013 00:08 |
jturbo
Messages: 76 Registered: August 2013 Location: Socal
Karma: 1
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Trying to find out what works what doesn't for anyone who is upgrading the vehicles.
What items should be just thrown away??
What Brake Pads are best???
Water pump?? original or Flowkooler???
Fan Original is fine or upgrade to electric???
Engine oil is Zinc really problem on the later years 455 77 403 78???
Fuel 455 1977 403 1978 these had been supposedly made for Unleaded fuel so can we assume the valve seats are lead free compatible?
Heater Hose ??? (Replace it all front to back??)
Belts whose are best?
Hoses whose are best?
Timing Chain ?? (Low mileage just do it or wait till 100k)
Rims 16 steel does anyone actually know which ones work and how to find them?
Radiator is the stock on usable for all around travel or Aluminum upgrade is needed?
Air Bags which new ones actually work (if you read online so many different ones but each have problems.)
Brake Booster (Use original or replace it ?? (Vacuum boost needed or not)
Brake Lines (Replace due to age or just based on what they look like)
Brake Pads (Does anyone make better pads or Ceramic pads??)
Fuel Pumps (In Tank, In-Line, Mechanical) Which is best option)
Headlights Upgrade (Truck Light LED anyone try these?)
EFI (What works and does it help mileage?)
Final Drive change (Is this really an upgrade or just something to do)
Ragusa tranny pan (Do people have problems with this as it seems to drop the ground clearance of the tranny)
Engine (Oil pump should this be changed to high cap)
Engine Intake Manifold 455 (RPM Low Profile or Edelbrock (Which is best and why what does it help or not)
Shedding weight (Rims to aluminum, Aluminum intake, Aluminum Radiator, upgrade Roof AC to modern ones, Any other ideas?)
Alternators (77 had 85amp and 78 has 140 should this be upgraded?)
Transmode/uplifted GMC (battery boost is not momentary like GMC motorhome models should this be changed)
Looking to bring these up to todays reliability for almost daily driver
Tires 16 inch (Whose are best and what is experience with costco tires)
Thanks hope people can expand on this or add-on
1978 Royal 403
1977 Birchaven 455
1977 Kingsley 455
All under Upgrading and restoration
Rosemead California
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Re: Complet upgrade list of questions bullet proof modernize GMC [message #218849 is a reply to message #218845] |
Sun, 18 August 2013 01:32 |
George Beckman
Messages: 1085 Registered: October 2008 Location: Colfax, CA
Karma: 11
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Eejturbo wrote on Sat, 17 August 2013 22:08 | Trying to find out what works what doesn't for anyone who is upgrading the vehicle.
What items should be just thrown away??
Thanks hope people can expand on this or add-on
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Gene Fisher has compiled page after page of upgrades, discussions of upgrades and really keeps after it. It is a well done project.
Find the site at: http://gmcmotorhome.info/
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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Re: [GMCnet] Complet upgrade list of questions bullet proofmodernize GMC [message #218865 is a reply to message #218863] |
Sun, 18 August 2013 09:29 |
Ken Henderson
Messages: 8726 Registered: March 2004 Location: Americus, GA
Karma: 9
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John,
It would be might-nigh impossible to cover all of your topics as a well as
they've already been covered, most repeatedly, here in the fairly recent
past. You can review all of that at:
https://groups.google.com/forum/m/#!forum/gmcnet-archive
HTH
Ken H.
On Aug 18, 2013 7:17 AM, "Rob Mueller" <robmueller@iinet.net.au> wrote:
> John,
>
> With all due respect do you have any idea how much time it would take to
> respond to all 26 of your questions?
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org [mailto:
> gmclist-bounces@temp.gmcnet.org] On Behalf Of john
>
> Most of the data he links to is obsolete or not present.
>
> That's why I was hoping people would contribute to generate a new list of
> what actually works.
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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Re: Complet upgrade list of questions bullet proof modernize GMC [message #218906 is a reply to message #218845] |
Sun, 18 August 2013 14:00 |
Otterwan
Messages: 946 Registered: July 2013 Location: Lynnwood (north of Seattl...
Karma: 0
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Unless you are independently wealthy and have nothing but time, I would suggest making a few obvious upgrades (16" wheels and tires) routine maintenance (bearings, a tuneup, and make sure your brakes are in good working order) and then just drive and see what seems inadequate or worn out. Don't worry about the engine until it needs rebuilding. The stock radiator should be fine, but when it needs replacing then think about upgrading and so on.
The stock systems are pretty good considering they were designed 40 years ago. Make sure they are working, then get out, have some fun, don't sweat the small stuff.
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
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Re: [GMCnet] Complet upgrade list of questions bullet proof modernize GMC [message #218984 is a reply to message #218906] |
Sun, 18 August 2013 19:32 |
Steve Jess
Messages: 169 Registered: April 2012
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Senior Member |
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George and John,
The correct address is www.gmcmotorhomeinfo.com. The other one, gmcmotorhome.info, is out of date. I don't know why Gene would keep an outdated site up like that. Either take it down, set it to forward to the current site, or copy the current information to it. There's no point in keeping a site with old data around, especially when the address is so close to the correct site.
Steve Jess - Aguanga, CA
1977 GMC Palm Beach "The DreamLiner"The 10,000 pound antique Home Theater with plumbing
> To: gmclist@temp.gmcnet.org
> From: dao@oarsllc.com
> Date: Sun, 18 Aug 2013 14:00:50 -0500
> Subject: Re: [GMCnet] Complet upgrade list of questions bullet proof modernize GMC
>
>
>
> Unless you are independently wealthy and have nothing but time, I would suggest making a few obvious upgrades (16" wheels and tires) routine maintenance (bearings, a tuneup, and make sure your brakes are in good working order) and then just drive and see what seems inadequate or worn out. Don't worry about the engine until it needs rebuilding. The stock radiator should be fine, but when it needs replacing then think about upgrading and so on.
>
> The stock systems are pretty good considering they were designed 40 years ago. Make sure they are working, then get out, have some fun, don't sweat the small stuff.
> --
> 1976 Royale "Twinkie II", 1978 Palm Beach with front end fire. Lynnwood WA
>
> “Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.”
> _______________________________________________
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