1971 GMC coming home - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**dtkarst** · 09-07-2019, 02:16 PM

Just got this old Gmc bought, been sitting a mile down the road for years and never k ew it was there until a storm took the roof off the building. Driving by to my pasture of goodies and saw the tailgate sticking out and thought I had to take a look. Bought new where I’m from and stayed local it’s whole life. Air conditioned, power steering and power brake pickup that’s real solid. Not sure if it’s accurate but they said it was ordered with a turbo 400 in it but haven’t been able to crawl under it and look, they said it was parked because it lost reverse. Anyway, haven’t had many gmcs and since it’s local I think it’s neat. Going to pick it up here in the next few days once they get everything cleaned out. I’ll share the only pictures I’ve got right now though.

**too much stuff** · 09-07-2019, 03:06 PM

Nice find, and close to home also...

**Steeveedee** · 09-07-2019, 04:30 PM

Looks nice, and nicely equipped! Congrats.

**dtkarst** · 09-07-2019, 04:48 PM

Few more, need to find a couple rollers for the front

*randy500* · 09-07-2019, 06:33 PM

Z84=cheyenee=sierra on gmc, should have a headliner and trim. Neat truck with a nice option package.
Fender badges should say sierra and is there evidence of sierra bed emblems?

DEAK71C10 · 09-07-2019, 09:26 PM

Neat find. Is the hood emblem added from a late 50's model Chevy fender emblem?

72 tigger · 09-07-2019, 10:41 PM

Nice find- bet it would buff out decent. Even has the optional leaf springs

54blackhornet · 09-08-2019, 10:20 AM

I have a 71 and the leafs are standard equipment.

72 tigger · 09-08-2019, 02:04 PM

Quote:

Originally Posted by 54blackhornet

I have a 71 and the leafs are standard equipment.

Why are they listed on the spid?

**Already Gone** · 09-08-2019, 04:29 PM

Quote:

Originally Posted by 72 tigger

Why are they listed on the spid?

I was gonna post this same question after reading through the post. I always thought that the USA built Chevys came with trailing arms/coils and the the GMC's had the leafs. The Canadian built trucks from Oshawa whether Chevy or GMC all had coils from the factory but this truck is a St. Louis build.

**Warrens69GMC** · 09-08-2019, 05:23 PM

Nice truck!!

68Gold/white · 09-08-2019, 06:56 PM

Very nice!!!
Can't wait for more pictures!!!

When you get it close to running...since they say they lost reverse..If you drop the trans pan, whether it's a TH350 OR a TH400. THere are 2 different types of filters made for both of those transmissions. One has a cloth type of material that clogs up easily, the other is a screen. I've been told by my engine builder to always use the screen type filter...who knows what the fluid looks like....

**dtkarst** · 09-08-2019, 09:02 PM

I know the 60-66 gmcs came standard with leafs but not familiar enough with these years of gmcs to say. I’ve got a 71 Cheyenne that has leafs and it’s written the same on the glovebox. Also, we’re the 400s available in these from the factory in a half ton small block?

72 tigger · 09-09-2019, 05:52 AM

I’ve never heard of a small block coming from the factory with a TH400. Maybe someone will correct me

**too much stuff** · 09-09-2019, 07:57 AM

Quote:

Originally Posted by 72 tigger

I’ve never heard of a small block coming from the factory with a TH400. Maybe someone will correct me

Pretty sure my 72 Cheyenne/30 is a 350/th400 combo. I am thinking it was optional in a 1 ton?

**dtkarst** · 09-09-2019, 09:17 AM

Well the main reason I ask is because I’ve got a rebuilt turbo 350 but if it originally came with a 400 I’d have it rebuilt. These were the second owners I bought it from who’ve owned it since the mid 70s and say they’ve never changed it but it could’ve been forgotten in all that time

68Gold/white · 09-09-2019, 10:23 AM

You can see the vacuum modulator on a TH400 looking down from the pass side fender. The vacuum line will be visible connected to the modulator, the modulator is at the pass side front corner of the pan, you can't miss it
If you can't see any of that, it's a TH350...it's modulator is at the back of the pan on the pass side...

**71blksuper4x4** · 09-09-2019, 10:46 AM

I have a 72 Cheyenne Custom Camper 2wd that has it's original th400 in it. It was a factory 350/th400 truck low hump.

noxqsz · 09-09-2019, 08:54 PM

I have a '67 that came from the factory with a 327 and a TH 400.

72 tigger · 09-09-2019, 10:01 PM

Quote:

Originally Posted by too much stuff

Pretty sure my 72 Cheyenne/30 is a 350/th400 combo. I am thinking it was optional in a 1 ton?

You’re right, I looked at my 71 data book and 1 tons came with a 400

09-07-2019, 02:16 PM	#1
dtkarst Senior Member Join Date: Nov 2010 Location: Hays, KS Posts: 2,490	1971 GMC coming home Just got this old Gmc bought, been sitting a mile down the road for years and never k ew it was there until a storm took the roof off the building. Driving by to my pasture of goodies and saw the tailgate sticking out and thought I had to take a look. Bought new where I’m from and stayed local it’s whole life. Air conditioned, power steering and power brake pickup that’s real solid. Not sure if it’s accurate but they said it was ordered with a turbo 400 in it but haven’t been able to crawl under it and look, they said it was parked because it lost reverse. Anyway, haven’t had many gmcs and since it’s local I think it’s neat. Going to pick it up here in the next few days once they get everything cleaned out. I’ll share the only pictures I’ve got right now though. Attached Images

09-07-2019, 03:06 PM	#2
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 13,790	Re: 1971 GMC coming home Nice find, and close to home also... __________________ 67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto

09-07-2019, 04:30 PM	#3
Steeveedee Who Changed This? Join Date: Jan 2013 Location: Simi Valley, CA Posts: 10,724	Re: 1971 GMC coming home Looks nice, and nicely equipped! Congrats. __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA

09-07-2019, 04:48 PM	#4
dtkarst Senior Member Join Date: Nov 2010 Location: Hays, KS Posts: 2,490	Re: 1971 GMC coming home Few more, need to find a couple rollers for the front Attached Images

09-07-2019, 06:33 PM	#5
randy500 Account Suspended Join Date: Jul 2016 Location: Tacoma, WA Posts: 6,873	Re: 1971 GMC coming home Z84=cheyenee=sierra on gmc, should have a headliner and trim. Neat truck with a nice option package. Fender badges should say sierra and is there evidence of sierra bed emblems?

09-07-2019, 09:26 PM	#6
DEAK71C10 Registered User Join Date: Jun 2018 Location: Thumb, Michigan Posts: 33	Re: 1971 GMC coming home Neat find. Is the hood emblem added from a late 50's model Chevy fender emblem?

09-07-2019, 10:41 PM	#7
72 tigger Registered User Join Date: Apr 2008 Location: Berne IN Posts: 3,255	Re: 1971 GMC coming home Nice find- bet it would buff out decent. Even has the optional leaf springs

09-08-2019, 10:20 AM	#8
54blackhornet Registered User Join Date: Jul 2008 Location: Eastern Oregon Posts: 2,393	Re: 1971 GMC coming home I have a 71 and the leafs are standard equipment. __________________ 71 C-20 07 Magnum RT AWD

09-08-2019, 05:23 PM	#11
Warrens69GMC Registered User Join Date: Jan 2003 Location: Safford,AZ Posts: 3,625	Re: 1971 GMC coming home Nice truck!! __________________ 1969 307, t350 1950 Chevy Wagon 1978 Big 10 1967 C10, 250,3-OTT

09-08-2019, 06:56 PM	#12
68Gold/white Registered User Join Date: Sep 2011 Location: Ark City, Kansas Posts: 3,411	Re: 1971 GMC coming home Very nice!!! Can't wait for more pictures!!! When you get it close to running...since they say they lost reverse..If you drop the trans pan, whether it's a TH350 OR a TH400. THere are 2 different types of filters made for both of those transmissions. One has a cloth type of material that clogs up easily, the other is a screen. I've been told by my engine builder to always use the screen type filter...who knows what the fluid looks like.... Last edited by 68Gold/white; 09-08-2019 at 07:04 PM.

09-08-2019, 09:02 PM	#13
dtkarst Senior Member Join Date: Nov 2010 Location: Hays, KS Posts: 2,490	Re: 1971 GMC coming home I know the 60-66 gmcs came standard with leafs but not familiar enough with these years of gmcs to say. I’ve got a 71 Cheyenne that has leafs and it’s written the same on the glovebox. Also, we’re the 400s available in these from the factory in a half ton small block?

09-09-2019, 05:52 AM	#14
72 tigger Registered User Join Date: Apr 2008 Location: Berne IN Posts: 3,255	Re: 1971 GMC coming home I’ve never heard of a small block coming from the factory with a TH400. Maybe someone will correct me

09-09-2019, 09:17 AM	#16
dtkarst Senior Member Join Date: Nov 2010 Location: Hays, KS Posts: 2,490	Re: 1971 GMC coming home Well the main reason I ask is because I’ve got a rebuilt turbo 350 but if it originally came with a 400 I’d have it rebuilt. These were the second owners I bought it from who’ve owned it since the mid 70s and say they’ve never changed it but it could’ve been forgotten in all that time

09-09-2019, 10:23 AM	#17
68Gold/white Registered User Join Date: Sep 2011 Location: Ark City, Kansas Posts: 3,411	Re: 1971 GMC coming home You can see the vacuum modulator on a TH400 looking down from the pass side fender. The vacuum line will be visible connected to the modulator, the modulator is at the pass side front corner of the pan, you can't miss it If you can't see any of that, it's a TH350...it's modulator is at the back of the pan on the pass side...

09-09-2019, 10:46 AM	#18
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,156	Re: 1971 GMC coming home I have a 72 Cheyenne Custom Camper 2wd that has it's original th400 in it. It was a factory 350/th400 truck low hump. __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever



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09-09-2019, 08:54 PM	#19
noxqsz Registered User Join Date: Sep 2006 Location: eastern Washington Posts: 30	Re: 1971 GMC coming home I have a '67 that came from the factory with a 327 and a TH 400.

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