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#1 |
Registered User
Join Date: Jul 2019
Location: New Boston, NH
Posts: 456
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General maintenance and seals
Hi all, I am sure this information is available by a search but I was hoping to get all I need in one order and can't find a complete list.
This winter I plan to pull the motor (327) on my 68 C-20 with a quadrajet on it. I want want to replace all seals and generally check everything while it's out. I have leaks in different places and want to stop them all. I started a list and if anyone happens to have part numbers or something I should add to the list, I would greatly appreciate it. Also, where is best place to order it all from (Rock Auto seems pretty good for stock parts but shipping is an issue. Thanks for taking the time. Rear diff fluid and gasket - looks like Eaton HO52 or HO72 (not sure how to tell the difference 3 qts 85-90W gear oil Change oil and filter - WIX 51143 cartridge - 5 qts 15-40W oil Change transmission fluid and filter Transmission pan gasket GMTH400 Super max filter with steel or brass screen 6 Qts ATF Oil pan and one piece gasket (Part number for gasket?) Rear main seal (part number?) Valve cover gaskets (part number Felcro?) Timing chain gasket (part number?) Front crank seal?? (part number) Input shaft seal? Tail shaft seal? How to resolve leaks at speedo connection? What did I miss for fluids? I have no power brakes, already flushed lines and replaced fluid in manual brakes. No power steering.
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1968 C-20 CST Vermillion http://imageevent.com/happy_dan/dantoys/68c20 2019 Silverado 2012 Camaro ZL1 |
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#2 |
Registered User
![]() Join Date: Mar 2018
Location: nh
Posts: 184
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Re: General maintenance and seals
Check bushings in a arms and rear trailing arms.
maybe replace shocks check drive shaft carrier bearing And I found Rock Auto to be cheaper on most everything but their shipping put them more expensive then summit. Put your list together with RA prices and have Summit price match.
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1969 C-10 LWB SS 1969 Camaro Pro Tour 2002 Camaro SS LE Rag Top #937 |
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#3 |
Registered User
Join Date: Jul 2019
Location: New Boston, NH
Posts: 456
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Re: General maintenance and seals
Thanks Don, I already have the carrier bearing and will check all bushings etc.
Anyone have a parts list and am I on track for what you would do if you go through the trouble of pulling the motor? Also looking for any "gotchas". I am handy but certainly not a mechanic and not at the experience level of the folks on this board!
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1968 C-20 CST Vermillion http://imageevent.com/happy_dan/dantoys/68c20 2019 Silverado 2012 Camaro ZL1 Last edited by Happy_dan; 05-06-2020 at 10:07 AM. |
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#4 |
Registered User
Join Date: Jan 2007
Location: Puyallup, WA
Posts: 1,662
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Re: General maintenance and seals
I'm just starting to do this too, so I'm interested in replies as well. Its very easy to snowball out of control picking parts, but I'm sticking with the thought that it's just a freshening up and most of what's there is good enough. So I'm changing ALL gaskets and other parts that are good to change while the engine is out. So water pump, oil pump, freeze plugs, timing chain, cam, valve seals.
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72 C10 lwb fleetside -stock 350/350 combo |
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#5 |
Registered User
Join Date: Jul 2019
Location: New Boston, NH
Posts: 456
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Re: General maintenance and seals
Same idea that I have. I want it to be something I do once and never again (I am almost 63 years old so that is not all that long. LOL).
I want the truck to have no leaks and nothing that is going to break down. I know there can always be something for a truck this old, but it only has 48K miles on it and in great shape so it's just the things to do now while it's out.
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1968 C-20 CST Vermillion http://imageevent.com/happy_dan/dantoys/68c20 2019 Silverado 2012 Camaro ZL1 |
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#6 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,119
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Re: General maintenance and seals
Here is a video on the speedometer gear housing seal replacement.
https://www.google.com/url?sa=t&sour..._dtmCcH1KJUkiO
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#7 |
Registered User
Join Date: Jul 2019
Location: New Boston, NH
Posts: 456
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Re: General maintenance and seals
Helpful video, thanks. I am sure mine needs to be done. Maybe just to that now, one less thing to do later. Change tranny fluid and filter at the same time.
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