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Old 02-01-2021, 10:58 PM   #26
350TacoZilla
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Re: 1966 GMC K10 Suburban Project

^ agree it looks more like the 505 Dark Green. I think that's the factory color on my 63 gmc 1500 also but called 505 Woodland Green for 63. I'm not good with all the different shades of colors but it looks like the 503 is lighter than what you have and 505 is closer match. I thought 503 was light kinda teal green or aqua green?

One place listed a code 511 Dark Aqua Metallic offered in 66 but not sure what that one looks like.

Last edited by 350TacoZilla; 02-01-2021 at 11:04 PM.
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Old 02-04-2021, 12:03 AM   #27
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Re: 1966 GMC K10 Suburban Project

350TacoZilla, thanks for your comments on original color.
Today had a conversation with forum member very knowledgeable on GMC trucks, and has many 60 to 66’s. He reminded me that GMC paint color codes are four digits, and GMC had many more colors then chevrolet. Will look on firewall and hood for paint codes, per his suggestion. Report back on paint code findings soon. Thanks member 60-66 on this information.
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Old 02-16-2021, 01:47 PM   #28
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Re: 1966 GMC K10 Suburban Project

65-66 paint color chart, showing paint code. The paint colors in chart below did not come through exactly correct. In sun light, looks match.
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Last edited by aotte1; 02-16-2021 at 01:56 PM.
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Old 02-16-2021, 09:37 PM   #29
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Re: 1966 GMC K10 Suburban Project

Shock Original 1966 GMC K10

Photos of the shocks removed from Suburban, looks like original to truck.
First photos are of the front shocks. Photos:
1st.-overall of front shocks;
2nd.- part number, both same number;
3rd.- build date, 355-65, 355 day of 1965, think Dec. 20,1965;
4th.- build location, Dayton Ohio;
5th.- bolt head marking, grade 8.

Color of shocks to be discussed more soon,

Note: The shock part numbers for Chevrolet K10s are reported by forum member to be the same.
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Last edited by aotte1; 02-16-2021 at 11:05 PM.
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Old 02-16-2021, 09:49 PM   #30
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Re: 1966 GMC K10 Suburban Project

Rear Shocks, 1966 GMC K10. Shocks:

1st. - Overall Rear Shocks, bolts show zinc plating;
2nd. & 3rd.- -photos of original color under outer shield;
4th.- bolt head marking, same as front except grade 5.

Have not cleaned these yet, date code is 122-65.

The color of the shocks is under further review. Looking at the black paint color over the under color (maybe gray). Plan to post NOS stabilizer shock to show color for comparison.
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Last edited by aotte1; 02-16-2021 at 11:06 PM.
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Old 02-16-2021, 10:36 PM   #31
cwcarpenter98
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Re: 1966 GMC K10 Suburban Project

I had no clue that GMCs had different color codes. Learn something new every day!
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Old 02-16-2021, 10:47 PM   #32
aotte1
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Re: 1966 GMC K10 Suburban Project

Christian,
Information from very knowledge member provided, that GMC used 4 number color codes, and had many more colors available. Still looking for summary list of GMC paint colors for 1965 and 1966. These 4 digit numbers may be found on the firewall, and/or under the hood.

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Old 03-02-2021, 02:08 AM   #33
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Re: 1966 GMC K10 Suburban Project

GMC Seat Belts Suburban

Photos of 1966 GMC suburban seat belts:
Photos 1-4 show interior, photo 5 shows the support bracket for center seat belts, in second row seat. Photo shows the top side of bracket that was next to plywood floor.
Will post more photos of other seat belt brackets used under the floor pan, and seat belts themselves, in next post.
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Last edited by aotte1; 03-02-2021 at 02:48 AM.
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Old 03-12-2021, 11:30 PM   #34
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Re: 1966 GMC K10 Suburban Project

GMC Seat Belt Anchors

Photos of the anchors for rear seat belts. Let me know if any other specific seat belt anchoring photos will help.
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Last edited by aotte1; 03-12-2021 at 11:45 PM.
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Old 03-12-2021, 11:48 PM   #35
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Re: 1966 GMC K10 Suburban Project

A few seat belt close up photos.
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Old 03-12-2021, 11:53 PM   #36
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Re: 1966 GMC K10 Suburban Project

GMC Suburban Seat Belt Tags, extra photo showing grade 8 bolt head marking “TR”. All the seat belt bolt head markings were “TR”.

NOTE: Believe seat belts were factory installed, but can not confirm. Also, finding 1966 Suburban bodies to have unique seat belt features, not found on earlier subs.
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Last edited by aotte1; 03-13-2021 at 12:02 AM.
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Old 03-13-2021, 12:30 AM   #37
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Re: 1966 GMC K10 Suburban Project

351E GMC V6 Engine

Photos of 1966 GMC suburban 351E engine. This engine has had some red touch up paint done to it.
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Last edited by aotte1; 03-13-2021 at 03:11 AM.
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Old 03-13-2021, 12:36 AM   #38
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Re: 1966 GMC K10 Suburban Project

A Few More. Last photo, not sure if this is correct air cleaner, it is what came with it?
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Old 03-13-2021, 12:39 AM   #39
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Re: 1966 GMC K10 Suburban Project

Still more 351E V6. The photos of the fan belts, are GMC fan belts, not sure if original or replacements. The last tow photos are of a different 351E out of a 66’ 1 ton truck. Also very original, with power steering too.
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Last edited by aotte1; 03-13-2021 at 03:16 AM.
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Old 03-13-2021, 12:50 AM   #40
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Re: 1966 GMC K10 Suburban Project

A few more, last two photos are of magnum exhaust manifolds. They have larger exits. They were used on big trucks, with the same engine.
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Last edited by aotte1; 03-13-2021 at 03:06 AM.
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Old 03-13-2021, 10:06 AM   #41
roll_the_dice
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Re: 1966 GMC K10 Suburban Project

Was that the original engine in the truck? You are going to use the 351E engine? If so, you are lucky to have the power steering pulleys! If not, I want to buy them from you! My air cleaner on my 351e is an oil bath cleaner...and is original to the truck. I can post a picture if needed.
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Old 03-13-2021, 12:14 PM   #42
aotte1
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Re: 1966 GMC K10 Suburban Project

RTD,
Yes, 351E V6 is original to suburban, and it also has dealer installed AC from when new, I think. Date codes on it are December 1065. Will post some photos of it. They will be some older photos, all the engine external accessory parts are packed away right now. They are inventoried per container.
The other 351E V6 engine, from a 1966 C30 dump truck, has 4 speed with PTO. If I remember correctly it has the optional 4 speed transmission. It is locked up, trying to free cylinder two cylinders, soaking with rust penetrating oil no luck. It is low mileage, under 50K. To bad it must have got wet some how. Cylinders stuck are ones where exhaust valves were open. Lesson, if storing, losses rockers, storage oil in cylinders. It is very original little touched. Some good some bad, e.g. oil in it looked like partial sludge, maybe from moisture?

Will get back on PS.

Like the 351 magnum exhaust manifolds, they are big! Also, strange that the intake is a single plane design.
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Last edited by aotte1; 03-13-2021 at 12:22 PM.
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Old 03-13-2021, 12:34 PM   #43
roll_the_dice
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Re: 1966 GMC K10 Suburban Project

That's awesome. I really like the 305e. I have one on my 1964 GMC 1 ton dually with a 4 speed Sm420 in it. I just need the crank and fan double pulley, so if you see one let me know! Will be following along for the engine alone and the rest of the cool burb!
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Old 03-17-2021, 10:50 PM   #44
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Re: 1966 GMC K10 Suburban Project

MEDIUM FAWN METALLIC 1966 GENERAL MOTORS INTERIOR

Ordered interior paint today from TCP Global, 858-909-2110. They were recommended by several on forum. Have used this paint before and it is a match.
1). TCP number is 22151;

Also ordered body color , GMC light green, Factory paint code number 5121. TCP number 43244.
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Old 03-17-2021, 11:02 PM   #45
aotte1
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Re: 1966 GMC K10 Suburban Project

Suburban front two hooks, cleaned and coated with ceramic. Body cushions in photo are front ones.
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Old 03-17-2021, 11:11 PM   #46
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Re: 1966 GMC K10 Suburban Project

Some bolts and parts cleaned. Cleaned in media cabinet, using 120 grit garnet media. Buy media in 50 lbs bags.
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Old 03-17-2021, 11:23 PM   #47
aotte1
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Re: 1966 GMC K10 Suburban Project

Parts ceramic coated. Coat with ceramic medium, to preserve the parts. It provides a very tough coating if done following instructions, minimize moisture. Low humidity, media clean 120 grit, ceramic costing ready and following grit blasting immediately coat. Photos 1, 2, and 3 are general, showing bolts, washers, and few other parts. These parts are for rear shocks, transfer case mounting bolts, etc. Last two photos are of the upper rear shock bolts ( 4WD). Head marking “C” grade 5.
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Last edited by aotte1; 03-17-2021 at 11:30 PM.
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Old 03-17-2021, 11:36 PM   #48
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Re: 1966 GMC K10 Suburban Project

Transfer case bolts and others parts.
1). First photo shows two transfer case bolts with “ROCKFORD” grade 5 head markings, rear upper shock cylinders, and shock bolts;
2). Second photo, two bolt shows “bow” and grade 8;
3). Third photo, four bolts “LE” grade 5.

Will provide bolt dimensions.
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Last edited by aotte1; 03-17-2021 at 11:50 PM.
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Old 03-18-2021, 12:21 AM   #49
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Re: 1966 GMC K10 Suburban Project

A few more photos of 4WD parts media blasted and costed. Apple photo side rotating issues. Photos show mess in garage, over look. The paint drying tree is from closed Sears, cloth rack.
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Last edited by aotte1; 03-18-2021 at 12:28 AM.
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Old 03-18-2021, 09:55 PM   #50
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Re: 1966 GMC K10 Suburban Project

Looking good! Please tell us more about this ceramic coating you are using.
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