My 1977 GMC Sierra Grande - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Pyrotechnic · 05-27-2007, 05:32 PM

Here is my new truck. It's a 1977 GMC Sierra Grande. 6 months after my 78 Silverado got destroyed by a reckless driver I finally found this truck. It's very rust free and mostly unmolested. The original AM radio and mono speaker is in place and it all still works. The A/C is also functional.

Got lots in store for it this summer!

Curly86 · 05-27-2007, 05:37 PM

Sweet looking

bigblock73 · 05-27-2007, 05:38 PM

WoW, beautiful truck...I love it!!

What does it have for options?

What are your plans for it?

Mr79C10 · 05-27-2007, 05:56 PM

Very NICE!

Pyrotechnic · 05-27-2007, 06:05 PM

Some of the options:

Heavy Duty Chassis Equipment (3/4 ton springs, big brakes)
A/C
350 4 barrel
3.42 12 Bolt Rear (Open)
Variable Ratio Steering
Front Stabilizer Bar
Turbo 400 (This was on the sticker but it has a Turbo 350 now so I'm guessing the 400 burned up and a 350 got put back in at some point)

So far I got the ignition sorted out and it's running real strong. Someone had some cheap small tube full length headers and dual exhaust with turbo mufflers installed. Sound pretty cool though, very old school.

This weekend I put some Monroe Gas Magnum shocks on it and it rides very nice. It had the original Delco shocks out back and some old Monroe Matics up front. I also put the rims and tires from my 78 on it since the tires didn't even have 50 miles on them. BFG Radial T/A's on American Racing chrome 10 hole rims. I'll post pics with the new shoes once I get the truck cleaned up after this rainy weekend.

Plans:
The most immediate plan is to get the drivetrain from my 78 into it which includes: New engine, trans, drive shaft, Posi rear end, and dual 2.5 exhaust with 50 series Flowmasters. After that I plan to tackle things like the interior, sound system, and eventually paint and body. I plan to paint it basically how it is now but with a good base/clear coat type of paint.

Oh yeah, I need to get that farmers bumper off the back and replace it with a sport bumper.

bigblock79 · 05-27-2007, 06:15 PM

very nice truck

KMK454 · 05-27-2007, 07:40 PM

Nice truck!

Austin isn't too far away...

boxrodz · 05-28-2007, 01:26 AM

Good looking truck, Pyro...

Looks like the hood needs to be straighten out and braces for the hood hinges installed to prevent the hood from buckling.

Hmm, a cargo lamp turned it into a third brake light...

Good, solid truck.

Ivan D. · 05-28-2007, 03:54 AM

Gotta love the hood bending in the middle, half of these trucks have that, mine is on the passenger side and it quite frankly pisses me off - hopefully will get taken care of tomorrow tho, stupid thing. Other than that, very nice truck, wish mine looked that good

grinch4om · 05-28-2007, 06:40 AM

take the springs off the hinges and use a prop rod would solve that

bigblock73 · 05-28-2007, 09:39 AM

Quote:

Originally Posted by grinch4om

take the springs off the hinges and use a prop rod would solve that

That would get old REAL quick! These hoods are heavy, and hard to lift while trying to prop up...hell, my 'glass hood I had with no springs was a pain itself.

Fix/replace the hinges...much better solution IMO.

magnethead · 05-28-2007, 10:41 AM

I like that color of paint, is that factory or a repaint?

Quote:

Originally Posted by bigblock73

That would get old REAL quick! These hoods are heavy, and hard to lift while trying to prop up...hell, my 'glass hood I had with no springs was a pain itself.

Fix/replace the hinges...much better solution IMO.

i got the springs off my hood....and as heavy as that thing is i can still safely prop the hood.

bigblock73 · 05-28-2007, 11:23 AM

Quote:

Originally Posted by magnethead

i got the springs off my hood....and as heavy as that thing is i can still safely prop the hood.

I never said it can't be done, it just gets old real quick. Why band-aid fix something (technically, it isn't fixing anything either) when it can be easily fixed and work like brand new. Besides, now you have to lug around a prop rod, and use it every time you want to do anything under the hood.

Like I said, I ran my glass hood for two years using a prop rod...it got old.

jpoutlaw · 05-28-2007, 06:41 PM

Nice truck -- former Austinite here. I also have a 77 Sierra Grande (but a short bed). Enjoy your pickup!

grinch4om · 05-28-2007, 06:52 PM

go to the junk yard and find a prop rod off a newer car that would work. heck on an old fairlane I had, I drilled a hole through the hinge,( where two pieces crossed), and stuck the hood pin through the hole

Ivan D. · 05-28-2007, 09:00 PM

Meh, I ain't lifting 50lb of steel hood, screw the hood prop stuff - I just "fixed" my hood with a piece of angle iron and 4 bolts, drilled right through the hood and bolted it on the under side, worked out alright. One of these days I'm gonna buy longer pieces of flat stock and add two more bolts top the passenger side and also do the driver side, and while I'm at it I may as well replace the regular bolts I got now with some carriage bolts for better looks, but for now that'll do just fine.

Pyrotechnic · 06-02-2007, 02:09 PM

New Pics! Here it is all cleaned up with some different tires and rims. Also got the spare tire carrier back under it. Gonna get some pics of the stock engine compartment and interior soon. Thanks for all the comments!

tyjoja · 06-02-2007, 04:21 PM

hey guys, I have a 73 and my hood looks and works fine, is there something I should do to keep it that way? I've seen some support brackets at LMC. Is this the way to go? thanks bob

babyJay · 06-03-2007, 02:32 PM

Quote:

Originally Posted by tyjoja

hey guys, I have a 73 and my hood looks and works fine, is there something I should do to keep it that way? I've seen some support brackets at LMC. Is this the way to go? thanks bob

Yeah, if you don't it will look like mine...

bmartin9122 · 06-06-2007, 10:07 PM

Very nice ride - well preserved. I am partial to the late 70's...

Slammed '87 · 06-07-2007, 12:27 AM

Nice! are you interested in lowering it? Hope ya don't mind, i was curious to see what it would look like. Looks sharp.

Pyrotechnic · 06-07-2007, 12:56 AM

Thanks for the lowering job! It actually looks pretty cool like that.

I do plan to take about 3 leafs out of each of the rear springs. It was ordered with 3/4 ton springs and the 8 leafs on each side is just overkill. Might switch to some 1/2 ton front springs too.

Yes, I do need to get that hood fixed. You can see a piece of aluminum that the PO screwed into it, except they screwed it in so the hood would stay bent like that.

The sheet metal on top is creased though so it will need a new hood regardless but for the time being I'd like to redo the brace so it at least sits flush.

Ivan D. · 06-07-2007, 10:08 AM

Quote:

Originally Posted by bigblock73

That will be quite a bit of work. Standard 1/2 ton springs are shorter, so to install them, you will need to grind off the rivets on the rear hangers and slide them forward to the 1/2 ton mounting position. I say start with removing leafs and go from there.

That truck looks like a 2wd truck, in that case he can indeed swap in the 1/2-ton front springs and be happy with it. What you're talking about is the rear springs, while he meant a front swap from what I understood.

bigblock73 · 06-07-2007, 10:52 AM

I quoted the wrong part of his message...thanks for catching that. I deleted my reply.

magnethead · 06-07-2007, 04:53 PM

well what he's saying is he's got 8 leaf 3/4 ton springs now, he's gonna pull 3 leafs and make it a 5 leaf 3/4 ton pack.

05-27-2007, 05:32 PM	#1
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	My 1977 GMC Sierra Grande Here is my new truck. It's a 1977 GMC Sierra Grande. 6 months after my 78 Silverado got destroyed by a reckless driver I finally found this truck. It's very rust free and mostly unmolested. The original AM radio and mono speaker is in place and it all still works. The A/C is also functional. Got lots in store for it this summer! Last edited by Pyrotechnic; 05-27-2007 at 05:34 PM.

05-27-2007, 05:37 PM	#2
Curly86 You want it there when??? Join Date: Oct 2006 Location: Lewisburg Ky Posts: 393	Re: My 1977 GMC Sierra Grande Sweet looking __________________ 1986 Silverado Flatbed 400 SB with 350 turbo 1997 Ford Explorer with 302 mydrive to work ride 1978 Gmc Midas RV 21ft with 46,000 actual miles 2003 Chevy Avalanche 5.3 327 and Tweety Bird Yellow Big Sandy Survivor 09 Trucks in the Blue Grass Survivor 09 TNCTC Streetcruzin

05-27-2007, 05:38 PM	#3
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,824	Re: My 1977 GMC Sierra Grande WoW, beautiful truck...I love it!! What does it have for options? What are your plans for it? __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

05-27-2007, 05:56 PM	#4
Mr79C10 It Is What It Is,,,, Join Date: Aug 2006 Location: The Gun Shine StateFlorida* Posts: 1,765	Re: My 1977 GMC Sierra Grande Very NICE! __________________ 79 C10 Short Box ST8 6 bang'r Lowered w/ 3" Control arms, 2" Lower Coils and 4" shackles and hangers W/ FLIP KIT __--__* 79 C-10 project* .........................__ ..............._____ l __\___ ..............\|_(O)_ \|___(O) ] FAQ INDEX Thread The Kulture My Rat Den

05-27-2007, 06:05 PM	#5
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: My 1977 GMC Sierra Grande Some of the options: Heavy Duty Chassis Equipment (3/4 ton springs, big brakes) A/C 350 4 barrel 3.42 12 Bolt Rear (Open) Variable Ratio Steering Front Stabilizer Bar Turbo 400 (This was on the sticker but it has a Turbo 350 now so I'm guessing the 400 burned up and a 350 got put back in at some point) So far I got the ignition sorted out and it's running real strong. Someone had some cheap small tube full length headers and dual exhaust with turbo mufflers installed. Sound pretty cool though, very old school. This weekend I put some Monroe Gas Magnum shocks on it and it rides very nice. It had the original Delco shocks out back and some old Monroe Matics up front. I also put the rims and tires from my 78 on it since the tires didn't even have 50 miles on them. BFG Radial T/A's on American Racing chrome 10 hole rims. I'll post pics with the new shoes once I get the truck cleaned up after this rainy weekend. Plans: The most immediate plan is to get the drivetrain from my 78 into it which includes: New engine, trans, drive shaft, Posi rear end, and dual 2.5 exhaust with 50 series Flowmasters. After that I plan to tackle things like the interior, sound system, and eventually paint and body. I plan to paint it basically how it is now but with a good base/clear coat type of paint. Oh yeah, I need to get that farmers bumper off the back and replace it with a sport bumper. Last edited by Pyrotechnic; 05-27-2007 at 06:06 PM.

05-27-2007, 06:15 PM	#6
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: My 1977 GMC Sierra Grande very nice truck __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11

05-27-2007, 07:40 PM	#7
KMK454 Registered User Join Date: Jan 2007 Location: USA Posts: 440	Re: My 1977 GMC Sierra Grande Nice truck! Austin isn't too far away... __________________ Kurt Instagram: @kurtkphoto 1978 C10 Silverado 1991 Camaro B4C

05-28-2007, 01:26 AM	#8
boxrodz Until Seventy Times Seven Join Date: Feb 2005 Location: Rocky Mountain Front Range Posts: 1,301	Re: My 1977 GMC Sierra Grande Good looking truck, Pyro... Looks like the hood needs to be straighten out and braces for the hood hinges installed to prevent the hood from buckling. Hmm, a cargo lamp turned it into a third brake light... Good, solid truck. __________________ boxRODz 1983 C10 SWB Fleetside When two halves is gone, there's nuthin left. Two nothings is nuthin. That's mathematics son. You can argue with me but you can't argue with figures. Two half nothings is a whole nuthin...

05-28-2007, 03:54 AM	#9
Ivan D. glamoros piece o' lowlife Join Date: Mar 2007 Location: Redford, MI Posts: 1,164	Re: My 1977 GMC Sierra Grande Gotta love the hood bending in the middle, half of these trucks have that, mine is on the passenger side and it quite frankly pisses me off - hopefully will get taken care of tomorrow tho, stupid thing. Other than that, very nice truck, wish mine looked that good __________________ The more I drink, the more I drink, the more I drink... diesel, reg cab, long bed, 4 across the rear, single stack, wooden stakes, and lotsa lights - the Hay Express

05-28-2007, 06:40 AM	#10
grinch4om dang its hot Join Date: Nov 2006 Location: frankfort kentucky Posts: 1,349	Re: My 1977 GMC Sierra Grande take the springs off the hinges and use a prop rod would solve that

05-28-2007, 06:41 PM	#14
jpoutlaw Registered User Join Date: Dec 2006 Location: Idaho Posts: 42	Re: My 1977 GMC Sierra Grande Nice truck -- former Austinite here. I also have a 77 Sierra Grande (but a short bed). Enjoy your pickup! __________________ JP 1977 GMC Sierra Grande (350) 2004 Jeep Wrangler (4.0)

05-28-2007, 06:52 PM	#15
grinch4om dang its hot Join Date: Nov 2006 Location: frankfort kentucky Posts: 1,349	Re: My 1977 GMC Sierra Grande go to the junk yard and find a prop rod off a newer car that would work. heck on an old fairlane I had, I drilled a hole through the hinge,( where two pieces crossed), and stuck the hood pin through the hole

05-28-2007, 09:00 PM	#16
Ivan D. glamoros piece o' lowlife Join Date: Mar 2007 Location: Redford, MI Posts: 1,164	Re: My 1977 GMC Sierra Grande Meh, I ain't lifting 50lb of steel hood, screw the hood prop stuff - I just "fixed" my hood with a piece of angle iron and 4 bolts, drilled right through the hood and bolted it on the under side, worked out alright. One of these days I'm gonna buy longer pieces of flat stock and add two more bolts top the passenger side and also do the driver side, and while I'm at it I may as well replace the regular bolts I got now with some carriage bolts for better looks, but for now that'll do just fine. __________________ The more I drink, the more I drink, the more I drink... diesel, reg cab, long bed, 4 across the rear, single stack, wooden stakes, and lotsa lights - the Hay Express

06-02-2007, 02:09 PM	#17
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: My 1977 GMC Sierra Grande New Pics! Here it is all cleaned up with some different tires and rims. Also got the spare tire carrier back under it. Gonna get some pics of the stock engine compartment and interior soon. Thanks for all the comments! Last edited by Pyrotechnic; 06-02-2007 at 02:12 PM.

06-02-2007, 04:21 PM	#18
tyjoja Registered User Join Date: Jan 2007 Location: albany oregon Posts: 168	Re: My 1977 GMC Sierra Grande hey guys, I have a 73 and my hood looks and works fine, is there something I should do to keep it that way? I've seen some support brackets at LMC. Is this the way to go? thanks bob



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06-06-2007, 10:07 PM	#20
bmartin9122 Registered User Join Date: Jan 2006 Location: Texas Coastal Bend Posts: 169	Re: My 1977 GMC Sierra Grande Very nice ride - well preserved. I am partial to the late 70's... __________________ 79 GMC Sierra Grande K15 --PPG paint code 62608 Sunburst Orange Metallic (WA802K) --Gentex auto-dimming rearview mirror model K31 --Carriage Works billet grille model 40071 --Go Industries 2.5" tubular stainless headache rack --Sylvania Silverstar sealed headlights model H6024ST --Texas Saddlebags center console model 101 --Brown's Welding class IV V-5 pipe bumper --Ramsey RE8000 winch --33" tires

06-07-2007, 12:27 AM	#21
Slammed '87 Registered User Join Date: Feb 2003 Location: Calgary Canada Posts: 556	Re: My 1977 GMC Sierra Grande Nice! are you interested in lowering it? Hope ya don't mind, i was curious to see what it would look like. Looks sharp. Attached Images __________________ If you can't rock the roads with your bumpers 1/2" off the ground, you're nowhere near low enough!

06-07-2007, 12:56 AM	#22
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: My 1977 GMC Sierra Grande Thanks for the lowering job! It actually looks pretty cool like that. I do plan to take about 3 leafs out of each of the rear springs. It was ordered with 3/4 ton springs and the 8 leafs on each side is just overkill. Might switch to some 1/2 ton front springs too. Yes, I do need to get that hood fixed. You can see a piece of aluminum that the PO screwed into it, except they screwed it in so the hood would stay bent like that. The sheet metal on top is creased though so it will need a new hood regardless but for the time being I'd like to redo the brace so it at least sits flush.

06-07-2007, 10:52 AM	#24
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,824	Re: My 1977 GMC Sierra Grande I quoted the wrong part of his message...thanks for catching that. I deleted my reply. __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale Last edited by bigblock73; 06-07-2007 at 08:11 PM.

06-07-2007, 04:53 PM	#25
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	Re: My 1977 GMC Sierra Grande well what he's saying is he's got 8 leaf 3/4 ton springs now, he's gonna pull 3 leafs and make it a 5 leaf 3/4 ton pack.

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