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#476 |
Senior Member
![]() Join Date: Aug 2008
Location: greeley colorado
Posts: 1,218
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
i have never seen a date code on a booster . the master cylinder looks right some had screw on tops and some had clip on tops
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#477 |
Junior Member
![]() Join Date: Apr 2017
Location: columbia, maryland
Posts: 47
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
Yelmer, Thanks. I am going to pull the booster this week. Will check for a date code, and post pictures if I find anything. Thanks again Frank
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#478 |
Senior Member
![]() Join Date: Aug 2008
Location: greeley colorado
Posts: 1,218
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
looks to be a date code on the master cylinder ?
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#479 |
Junior Member
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Location: columbia, maryland
Posts: 47
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
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#480 |
Senior Member
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Location: Wisconsin
Posts: 2,844
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
I have that exact same 618082 master cylinder on several low mile trucks. 8700 mile 65 K20 , 18,000 mile 66 GMC , my gold 66 K20 22,000 mile truck. Thats two Janesville and one Flint built trucks. I've found these same master cylinders NOS on 64-66 Bendix boosters. I believe that master of yours IS correct and original for your truck . Ive sent mine out to Lone Star Calipers to have stainless steal sleeves installed and restored.
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The hubcap thread http://67-72chevytrucks.com/vboard/s...d.php?t=702839 WANTED : 1963-1966 6 Cylinder Fan Shroud WANTED :1964-1966 PANEL TRUCK |
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#481 |
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Location: Wisconsin
Posts: 2,844
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
Yelmer , check your part number 3834112 , comes up as the rod assembly FOR the booster. The booster assembly is 3843823-assembly manual or 3848503 1966 parts book, for 1964-1966 and Bendix only.
More info on the 618082 master , this is the Bendix master cylinder, two companies were making master cylinders for GM at this time. The other was Delco / Moraine . Both are assembly line correct. Also look in the assembly manual , it shows the screw on top master cylinder. The date I believe is calendar days of the year out of 365 days ,yours 66th day of ? 1966 ? I have some with 146 and 277.
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The hubcap thread http://67-72chevytrucks.com/vboard/s...d.php?t=702839 WANTED : 1963-1966 6 Cylinder Fan Shroud WANTED :1964-1966 PANEL TRUCK |
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#482 | |
Junior Member
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Location: columbia, maryland
Posts: 47
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
Quote:
Last edited by f66; 02-13-2018 at 01:43 PM. Reason: Mis quoted |
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#483 |
Senior Member
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Location: Wisconsin
Posts: 2,844
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
Look up, or google, Julian Date Calendar , it puts the date as March 7th for 066 . Its calendar year . GM used this method on other parts also. As far as how it relates , its always before or close to before the build date of the truck. Do you by chance have the build sheet to this truck ? The master cylinder would be on that sheet also.
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The hubcap thread http://67-72chevytrucks.com/vboard/s...d.php?t=702839 WANTED : 1963-1966 6 Cylinder Fan Shroud WANTED :1964-1966 PANEL TRUCK |
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#484 | |
Junior Member
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Location: columbia, maryland
Posts: 47
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
Quote:
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#485 |
Senior Member
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Location: Wisconsin
Posts: 2,844
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
Well , generally thats the last three digits of the GM part number. I looked in several early books and still need to dig a little deeper. I have the number 360 in several other build sheets and those are Delco master cylinder trucks and found another with 364. I will keep searching. Just another tid bit , this same Bendix master cylinder was used on 1965 1966 Impalas and several other GM brands.
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The hubcap thread http://67-72chevytrucks.com/vboard/s...d.php?t=702839 WANTED : 1963-1966 6 Cylinder Fan Shroud WANTED :1964-1966 PANEL TRUCK |
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#486 |
Junior Member
![]() Join Date: Apr 2017
Location: columbia, maryland
Posts: 47
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
I pulled the Booster today. I am providing pics of the front and back. I have only found 2870 stamped into the booster adjacent to one of the M/C mounting studs. Should there be additional stampings? One thing I did notice was each shell has an "X" Scribed in at the the 12 o'clock or top. Leads me to believe that the booster was rebuilt sometime earlier. That is consistent with the history I know. The longtime previous 2nd owner was a mechanic and probably serviced the part himself vs just replacing. Also included pics of the booster mounted on the Kent Moore Tools the dealers would have used to service the booster in their service dept. These are shown in the shop manual.
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#487 |
Registered User
Join Date: Mar 2018
Location: Marshall
Posts: 2
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
Still need help with this:
Can anyone tell me the individual widths for each of these boards?: (I'm aware of the grooving/spacing) This site does not list it: http://www.gmcpauls.com/47-72_BedWood_Info.htm Thanks! Kirk Last edited by kmcgee14; 03-30-2018 at 01:09 PM. |
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#488 |
Registered User
Join Date: Jan 2014
Location: Comfort, TX
Posts: 111
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
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#489 |
Registered User
Join Date: Mar 2018
Location: Marshall
Posts: 2
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
Thanks! I did visit this site yesterday and they seem to list everything but the one I need. It has 10 boards. Do you see it on the site? Kirk
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#490 |
Registered User
Join Date: Aug 2017
Location: Santa Barbara, CA
Posts: 20
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Re: The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread
is there a touch up paint or color code available for the grey blue on the 1960 dash ? I don't have the dark grey that I have seen, but it seems to be original paint, just a few scratches, and some cracking.
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