Will It Run Or Will I Find Out Why This Squarebody Was Abandoned?!

After watching some of my videos, I had a local guy approach me and let me know he had something I might be interested in. He didnt know the make or model, just that there was an old truck ABANDONED on his property ever since he had lived there! Of course, I wasted no time going to check it out, and Lo and Behold it was a SHORT BED SQUAREBODY! A 1975 GMC Sierra Grande to be exact. Once I got her home, I started working on the 250 ci Straight 6 engine and she definitely gave me a run for my money. Will it start? Will it run and drive? I think this one will definitely be worth your time to watch!
Shop Dawg Member Shout Out:
‪@nolzgarage‬
@Rob-vy4xu
‪@mattrage1673‬
‪@Mountain_man71‬
‪@mw-st3qm‬
Also mentioned in this video:
STEVE ‪@Xthreadgarage‬ - Thanks for letting me phone a friend
Hey David (‪@ClassicCarRevivals‬ ) sorry about the ether 😂
SUPPORT:
If you want to get connected and help me grow the channel by being a part of some members only conversations and early access to content, consider signing up to be a ShOp-DaWg!
My dog Bandit is always right there beside me in the shop and is the first to hear every idea and see the progess on what im working on.
To join the Shop Dawgs click JOIN above or this link here:
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Check you guys on the next one!!
#classiccar #chevrolet #hotrod #gmc #sierragrande #squarebody #mechanic

[@okspeedshop]

Please subscribe! youtube.com/@okspeedshop?sub_confirmation=1

[@Xthreadgarage]

“I wish I understood engines” 😂 Best line yet.

[@okspeedshop]

Haha it’s funny because there was so much pain in it when I said it 😂

[@chestercribb9075]

Good running 1975 chevy pickup I like square body style trucks they are built better than they are today keep up the good work it deserves to live again I love it

[@okspeedshop]

I totally agree brother!

[@blaircrocker9845]

I was going to say a 73 or 74 by the grill but then i noticed a chevy front and GMC fenders so it may he a hodge podge. Love the old trucks. Three on the tree sweet

[@okspeedshop]

@@blaircrocker9845 yeah she’s seen a few things haha crazy that she’s been parked 20 years. I’m excited to get it driving next. Stay tuned!

[@davidowens1913]

That truck is purring like a kitten

[@okspeedshop]

@davidowens1913 finally got her going!

[@lanashill7949]

Watched till the end (with a cat nap somewhere, thanx for that) and boy oh boy do I know that feeling of triumph/relief/disbelief/accomplishment!

[@okspeedshop]

HAHA Iam glad I was able to to entertain AND lull you to sleep at the same time😜🤙🏼thanks for watching!

[@Mountain_man71]

GLORIOUS VICTORY!!!!! Fantastic job Matt!

[@okspeedshop]

Thank you dude!! It was like the fight of my life haha 😂😂 thanks for watching

[@c10scamaros23]

Watched it all, glad you din't give up on her!!

[@okspeedshop]

@@c10scamaros23 I was so close to quitting haha thanks for sticking around! It was a rush when she finally started and idled. So much fun.

[@mw-st3qm]

17:12 "ummmm.. rusty?" is so real 🤣

[@okspeedshop]

@@mw-st3qm rusty and bad… 😂😂

[@edwardsmith6998]

Yes

[@jimrobin98]

The sweet sound of SUCCESS! There is no better sound! GOOD JOB!

[@okspeedshop]

Thank you!! It felt good to hear that idle! 😃🙌🏻

[@stevegallego832]

Glad you got it running sometimes they fight you but it pays off 👍

[@okspeedshop]

This one faught me pretty good but it seemed worse since I don’t have a clue what I’m doing 😂😂

[@kristencameron1213]

Watched this video all the way through! Victory was sweet! You’re learning something new every day!

[@okspeedshop]

Thanks for going the distance!!!! 😎 yes this one taught me a lot. And I’m having fun with it 😄

[@Chevykev76]

Great video , shows how to get it running and not giving up. We all have been there at one time

[@okspeedshop]

Hey thank you! I’m just learning as I go so it takes me longer than most but I’m learning a lot and having fun! Thanks for watching!

[@tylerturner8379]

You’re learning and getting success! That’s gotta be satisfying! Those electric edelbrock pumps are made to push fuel not pull them. Move it close to the tank and it will prolong the life.

[@okspeedshop]

Thanks man! Yes I’m enjoying learning even though it’s frustrating at times. Ok cool good to know, I’ll do that! Thanks!!

[@bellowsjeep3999]

Well done, didn’t think it was possible, but you did it!

[@okspeedshop]

Thank ya man! I was beginning to question it myself haha

[@johngallagher5341]

Yeah I watch it all the way through and it was painful not to be able too help you figure out sooner. But boy when you are any buddy gets it running on its own it’s like the first time ever time!!!!😂😂🤣😂🤣

[@okspeedshop]

Haha yeah man!!! Thanks so much. It was painful for me too haha 😆 I know you know that rush when she finally runs. It was awesome. Ready to do it again. Thanks for watching!!

[@robertgorman5622]

You are correct in guessing mid to late 70's round Head lights until 80 ... 81 and above was square

[@mw-st3qm]

the channel just keeps getting better and better every video! and i am biased, i f'kn love squarebody trucks!

[@okspeedshop]

Let’s gooo!! Thanks man!! I appreciate your support!! 💪🏼

[@mw-st3qm]

@@okspeedshop i'm really lichen it!!

[@nolzgarage]

I have that Road & Track, Came out in 2004! Awesome Video! Digging the long Videos!!

[@okspeedshop]

No way!! That’s cool. Need a spare copy? 😂 Thanks man, this one taught me a lot! I appreciate you watching!

[@jaysonburns8512]

Your getting better with evry truvk man and bring consitant....keep up the good work man..

[@okspeedshop]

Thank you bro!! I’m having fun learning and posting! Thanks for watching!

[@SwampDonkeyGarage84]

Damn spoke too soon watching and commenting on this at the same time lol I love it

[@okspeedshop]

I love it when people interact with the videos as they watch! Thank you!

[@cool62chev]

Watched the whole video! Love you enthusiasm. Keep it up.

[@okspeedshop]

@@cool62chev hey thank ya buddy. I appreciate you sticking around to see how it played out. It was quite the journey. I’m just learning so everything is new to me. Having a great time with it. Now to get it driving!

[@frosgarage9099]

Watched till the end. Sometimes never giving up pays off. Good job bud👍

[@okspeedshop]

@@frosgarage9099 wow thanks for sticking with me! I’m learning as I go so it’s a little slower than most but we’re getting there!!

[@Sdconstruct]

Congrats on figuring it out! Keep on keepin on brother!

[@okspeedshop]

Thanks! It was a journey. Learned a lot. It was a rush listening to it run. Now to drive it!! Stay tuned 🙌🏻

[@richardjones9422]

Dude, watched it to and end glad you got it started. Enjoy!

[@okspeedshop]

@@richardjones9422 awesome man thanks for watching! Sorry it was so long but I appreciate you sticking with me!!

[@spaghettimeatloaf3926]

I like what you're doing. Getting the truck to Start,stop and drive, a better hood and the tailgate. Put it up for sale , a running and driving vehicle should always bring more money, and a decent place for someone to start wanting to build one. Did you get to keep the factory wheels off of the truck, or was it not part of the deal on the purchase? I'd save that old junkie hood. You never know when you might need one, just for temporary use...

[@okspeedshop]

It came with THREE rally wheels and one mismatch trailer wheel. I’ll have to find another! Thanks for watching and commenting!!

[@terrytye6497]

Cool beans baby you did it . The more you do the more you learn.

[@joseguerra3989]

Brother I was grinning ear to ear when you got it fired up!!!

[@okspeedshop]

Haha me too dude!! Thanks for watching!!

[@joseguerra3989]

Yes sir. I'm supposed to make that trade Friday if everything pans out.

[@okspeedshop]

@@joseguerra3989 nice!! I think you did good

[@jayb.5017]

Hodge podge of parts. 1973-74 Chevy grille, 1977-80 doors, someone removed the rain gutters. Not a Sierra Grande though, just a base Sierra. The Grande was the GMC equivalent to the Chevy Scottsdale, the High Sierra was the same as the Chevy Silverado introduced in 1975, this truck is the same as a Chevy Custom Deluxe. 👍 Those 250s were slower than a herd of turtles marching through peanut butter but hard to kill, super reliable and easy to work on and get good mileage and it's an early non-integral head engine. If it were mine, I would be tempted to get a TBI injected 250 L6 from Mexico or an MPFI 250 L6 from South America and put that in with an NV3500 5 speed for a nice-weather cruiser.

[@okspeedshop]

😂😂😂😂 dude this was the best mixture of education and humor. Super impressed with your knowledge of these machines. Even more impressed with your never ending list of hilarious references. Thank you dude!!! 😂😂😂

[@richardbates2367]

High Sierra and Sierra grande were higher trim level trucks i used to own a 78 GMC Sierra grande k15

[@richardbates2367]

​@@okspeedshopi was not upset or anything just figured I'd help you figure out what it was

[@okspeedshop]

@@richardbates2367 I didn’t take it that way! I appreciate all the info!!

[@1776_Garage]

Good job man!

[@fzolee76]

Hard,but nice.Good job.

[@flippingthesouth6515]

When you work the throttle it wants to hit. Thats because it is actuating the "accelerator pump". That means you are having fuel delivery problem. Take your time and don't rush the process. You are getting there! Keep it up...

[@okspeedshop]

@@flippingthesouth6515 that makes sense. What do you think the reasons could be

[@Leo-DaGreek]

I got a 74 C-20 Super Cheyenne 454/400 runs and drives for sale $10GTX

[@okspeedshop]

@@Leo-DaGreek man sounds sweet but outta my budget for now. She’ll sell! That’s a desirable combo!!

[@Leo-DaGreek]

@@okspeedshop Longhorn package/Flow Masters ,Gold/White,Crome 8 lug slot Mags,Saddle interior,A/C,Power Brakes,power steering,dual tanks,3/4 Ton

[@Leo-DaGreek]

Arlington TX Truck/Jerry’s Chevrolet 1974

[@bucklocust4113]

Good job brother. Love me some straight 6

[@okspeedshop]

They are obviously unkillable 😜💪🏼 thanks!!

[@TurbochargedTactics]

Absolutely amazing Matt! Your production has me in awe and inspired brother!

[@okspeedshop]

Thank you dude!! We must entertain the people 😂🤙🏼

[@TurbochargedTactics]

@@okspeedshop well you're definitely killing it! I'm over here taking notes 🤣🤣

[@okspeedshop]

@TurbochargedTactics we’re all learning from each other what works and doesn’t. I’ll share anything I know, it’s not much but I wanna see everybody win. I noticed you didn’t camera angles. I was taking notes on that. Good work! Thanks again!

[@TurbochargedTactics]

@@okspeedshop exactly! Same here, you know I'm a text away bro! I'm all about helping when I can lol like I said I don't know everything but we can definitely figure it out together 💪

[@okspeedshop]

@TurbochargedTactics thank you dude!

[@Tannerrebuilds]

dang you did an amazing job at this.great video

[@okspeedshop]

@@Tannerrebuilds hey thank you buddy!

[@JaredHudson-oj8hc]

💪 great job man

[@okspeedshop]

Thanks man! Learning is hard 😂

[@edwardsmith6998]

I. Work. On. Them. I. No i. Love. Gmc

[@TheCrackerBox]

Thanks for another , Brother !

[@okspeedshop]

You bet dude!!

[@normanselset8788]

I jumped forward threw it, Must have tormented you. Phone a friend is always a good idea.

[@okspeedshop]

Yep it definitely helped me when I was stumped. Thanks for watching!

[@jeronpaige9772]

I watched this video all the way through!

[@okspeedshop]

WOW BRO thank you so much! Thanks for sticking around!!!

[@1776_Garage]

Good job man!I watched the whole thing! Lol

[@okspeedshop]

@@1776_Garage wow thanks for watching man!

[@1776_Garage]

@@okspeedshop We gotta support the car community

[@okspeedshop]

@@1776_Garage yes sirrrr

[@gavirgo32]

Great job bro 😎

[@okspeedshop]

Thanks man!!

[@ElSob94803]

That was a loooong video, but you got it to start.

[@okspeedshop]

@@ElSob94803 haha don’t even ask me how much footage I had to cut out. 😂😂 I’ll learn and make shorter videos once I’m smarter 😂😂

[@dominicshaw8301]

That was a great watch 😊

[@okspeedshop]

Hey thanks for watching dude!

[@jackwhite1738]

Watched all the way to start

[@okspeedshop]

Yeah buddy!!! Thanks so much!! 💪🏼💪🏼 I learned a lot on this one. Now to get it driving!!

[@timfoster8683]

Doing good Always remember. Gas. Spark. Air. Check. Plugs. Timing Get gas. Real good battery. Work s ever time O. Oil to. Ur good. Ur getting em running. A don’t worry. That big shop will come.

[@okspeedshop]

Thanks a lot Tim! 💪🏼

[@SwampDonkeyGarage84]

Hey there bud I love your channel I’m a huge fan so far I wish I knew the KZbin better I’d have my own channel keep up the good work man

[@okspeedshop]

Hey man thanks for watching! I’m glad you’re enjoying the videos. I’m having a blast making them. KZbin is kinda like having kids. There’s no way to be ready, you just gotta figure it out along the way haha GO FOR IT! I’ll subscribe!

[@LewisMowersandBoats]

Very cool brother Matt ...just subscribed 😊 54:55

[@okspeedshop]

Awesome thanks!

[@1776_Garage]

That truck looks how I feel sometimes. Lol

[@okspeedshop]

I looked worse than it did after jacking with it all week haha

[@TurbochargedTactics]

Let's gooooo!!!!!!!!! 53:43

[@okspeedshop]

Haha yeahhh buddy

[@mattrage1673]

feels great to get a win after taking a few L's.. congrats brother

[@okspeedshop]

@@mattrage1673 a bunch of L’s 😂😂😂 Thank ya buddy. This one taught me a lot.

[@robertgorman5622]

That brings back memories I bought a 74 GMC Sierra grande camper special it had electric seats from maybe mid 80's GM maybe Buick Oldsmobile or Pontiac 😅😅😅😅😅😅😅😅😅😅😅😅😅😅

[@okspeedshop]

@@robertgorman5622 is this your truck?!? 😂😂

[@robertgorman5622]

@@okspeedshop not enough pistons 😁🤣

[@joeyfaulks]

I watched it all the way through this the first time I seen one of your videos but I was strolling through and I heard you say pudding Fab shop and I stopped and it was pretty good good job

[@okspeedshop]

@@joeyfaulks man thanks for stopping by and going the distance!! Hope you’ll subscribe!

[@davidowens1913]

Great job

[@okspeedshop]

@@davidowens1913 thank you!

[@richardbates2367]

Judging by the aluminum panel on the dash pad, and the clear park and turn signal lights 75-76

[@okspeedshop]

Awesome good eye!!

[@Xthreadgarage]

Looks like a cowboy Cadillac with that interior.

[@okspeedshop]

The term “cushy” comes to mind.

[@travelingtech3251]

Heavy half’s are rare to come across and bring big money in the square body world.

[@okspeedshop]

I’m hoping to bring some of that!! She’s for sale and on sale!

[@Tannerrebuilds]

i was trying to free up a inline 6 for a starliner. its junk you did one amazing job

[@okspeedshop]

I had to throw everything but the kitchen sink at it haha finally got lucky. I saw you took the first drive in the starliner the other day! Congrats

[@Tannerrebuilds]

@@okspeedshop haha. and there was bees everywhere lol. thanks she drives nice everything works to. i think she drives better then my grandpas hot rod lol

[@okspeedshop]

@@Tannerrebuilds that’s awesome!!!

[@w-dad4040]

6:20 looks like late 80s oldsmobile seats, or buick. I guess Olds though

[@okspeedshop]

I’ll tell ya one thing, they are COMFORTABLE 😂

[@larrydixon-vi7ld]

You need to make sure your distributor hot wire is hot during cranking and after it trys to run

[@okspeedshop]

Ok I’m learning how to use the volt meter haha

[@aaronsg71]

Love them there floor pans 🤣

[@okspeedshop]

High class item right here 😂😂

[@aaronsg71]

@@okspeedshopgreat job finally getting it started!

[@okspeedshop]

@aaronsg71 thank you brother. Thanks for watching and commenting! That’s a huge help to the channel

[@larrydixon-vi7ld]

You have a fuel problem

[@okspeedshop]

Yep for sure. Amongst others haha

[@larrydixon-vi7ld]

Starter shims go between the starter and block. The only way they work

[@okspeedshop]

That what I always thought too. Maybe this one isn’t doing anything, but it works 😂

[@Hanky_Bannist8r]

73-80 had that grille and round headlights. If it were me and that 6 would run I'd leave it and use it as a parts hauler.

[@okspeedshop]

That’s what I’m thinking. Just a cool little put around ride. If I start changing stuff then I gotta change a lot more stuff 😂

[@Hanky_Bannist8r]

@@okspeedshop keep it simple mechanically. Maybe use that rig as a paint and body experiment ? I have an '80 Scottsdale that I want to try some cheap paint trucks I leaned from another channel.

[@okspeedshop]

@Hanky_Bannist8r that’s a great idea! I do want to learn that stuff too

[@jspencer47]

I had a 75 Chevy pickup with the 250 engine and the coil was so far down if it saw a drop of water it would quit.

[@okspeedshop]

Oh man that’s off. I swapped mine to on top of distributor cap now

[@russellhanlin9510]

I had a 73 with the same front clip

[@okspeedshop]

I wonder what year models are the same

[@lawrencehastings2101]

Good job watch the whole video

[@okspeedshop]

@@lawrencehastings2101 thanks man!! Finally got there!!

[@DalePopiel-z4q]

1975 Chevy Picup Square Body

[@ryansgarageWI]

dude, you put a house key in the ignition 🤣

[@okspeedshop]

@@ryansgarageWI 😂😂😂😂 I couldn’t not try it

[@ryansgarageWI]

@@okspeedshop 🤣🤣🤣

[@ManuelLuisis]

Good job

[@okspeedshop]

@@ManuelLuisis thanks man!!

[@80cheyenneblazer]

Hey man, my name is Chris and that is an early 73-74 those 2 were identical, just like the 75-75 C-K series Chevy 's

[@okspeedshop]

@@80cheyenneblazer thank you!

[@eddiewipple8016]

Put some oil in your cylinders and check it again

[@davidbrandenburg2085]

hell yea to the end

[@okspeedshop]

Yeah buddy!!!!!

[@eddiewipple8016]

I think you need to take your time and I think it's all the time you have to pull distributor to set it

[@jasonbise2614]

Great video just course I know intake and exhaust valves has tolerance how did you know how to set them other than backing them off

[@okspeedshop]

@@jasonbise2614thanks! I loosened them up to get them loose and make sure they were freed up, then worked the push rod up and down with my left hand and tightened with my right hand until there was no more up and down play in the pushrod and then gave it about 3/4 of a turn more. Then rotate engine 120 degrees and go to next cylinder according to firing order. This method/camshaft didn’t require feeler gauge method. The tutorials I watched said it’s better to be a little loose rather than too tight. Hope this helps

[@jasonbise2614]

Ok thank you sir. I was wondering on the clearance of intake and exhaust valves

[@okspeedshop]

@@jasonbise2614 I’m just learning but I believe these are hydraulic lifter camshafts and the tolerance lash etc comes into play more for solid lifter cams. Maybe someone else on here with more experience can speak to that.

[@jasonbise2614]

Thank you sir for the input. If I wasn't on a fixed income I'd be a shop dog member

[@okspeedshop]

@@jasonbise2614 I appreciate that! Just your comments and watching the video is a great support for me and for the channel. Hope you show up in future vids as well

[@user-427.commodore]

Power wash first... Clean engine bay.. Get running... Maybe..

[@robertgorman5622]

Call the Pott county legend 😅😅

[@okspeedshop]

I sure could’ve used him in this deal haha

[@stevegallego832]

Hot wire the coil temporarily

[@rustyrhyne1476]

Congratulations! What are you going to use this truck as shop truck, personal, or we.?

[@okspeedshop]

Just gonna sell it, it oughta make someone a good if they wanted to take it on beyond this point. I got her driving and stopping now! On to greener pastures!

[@rustyrhyne1476]

Don't Blame You. Do a Chevy Suburban or Tahoe. If you can

[@okspeedshop]

Would love to! I’ll keep an eye out. Also looking for a muscle car of some kind

[@bellowsjeep3999]

I agree…73 or 74 based on the grill.

[@MrDouglasDuncan]

Loosing 12 v to coil when you let off start button. Dis. not wired correctly? Watched to the end glad it ran.

[@okspeedshop]

Thanks for watching! I don’t think it was losing 12v it just didn’t have enough compression from all the valves being stuck. Seemed like once I adjusted them and freed them up she ran right. I’m just learning though so could be wrong

[@mattmonteith2175]

Some time s they give you a hard time. But trying to figure out the last person who worked on it never give up

[@okspeedshop]

@@mattmonteith2175 yep, sometimes gotta work backwards to go forward 😂

[@larrydixon-vi7ld]

You have to work the throttle at the same time when its trying to start

[@trippworks]

1973 74 and 75 had the sunk in grille

[@okspeedshop]

@@trippworks I think she’s a 75

[@eddiewipple8016]

Did you check and see if you had a stuck valve

[@okspeedshop]

Yes at the end that’s what ends up fixing it finally

[@Mountain_man71]

I think 75 was last year for the round headlights.

[@okspeedshop]

Round eyes are definitely my favorite!

[@Mountain_man71]

@@okspeedshop mine too

[@travelingtech3251]

79 was the last year, mid year had square

[@daynalynds8719]

watched the whole thing

[@okspeedshop]

Wow awesome thanks that helps the channel a lot!!

[@stevegallego832]

It’s losing spark when you let off the key

[@robertbusin9983]

Did you bring the old wheels home they come in handy 😢

[@okspeedshop]

Yes I did!

[@eddiewipple8016]

I have one did that I had to walk backwards on a

[@ClassicCarRevivals]

Howdy Matt

[@okspeedshop]

Hey bro!! I’m learning here 😂

[@travelingtech3251]

Manual brakes and steering , 250 CI inline 6, 3 turbo 350 trans, heavy half = $2.7K

[@okspeedshop]

Sold! come get it 🤣🤙🏼

[@robertlacob8831]

Good job for someone who knows nothing of mechanic skills! Time to pick up some old Repair manuals and READ if you're going to stay in this type of work.

[@okspeedshop]

Thanks for watching! Good idea!

[@davidowens1913]

I watch all this video

[@okspeedshop]

Thanks for hanging in there with me!

[@aladwanit]

⁠ yah that’s right Keep going with Chevy trucks 👍

[@okspeedshop]

@@aladwanit thank ya buddy

[@larrydixon-vi7ld]

I should have looked harder , 75 was the first year for clear front marker light lenses

[@okspeedshop]

Ah nice. So funny how each year has little quirks

[@eddiewipple8016]

I think it's the timing out

[@eddiewipple8016]

Ignition switch might be more wrong

[@1776_Garage]

Really nice Chinese! That's funny.

[@okspeedshop]

@@1776_Garage 😂😂😂😂 only the best

[@joeyfaulks]

You need to turn it over and make sure you blow all of the oil out of the cylinders

[@okspeedshop]

@@joeyfaulks yeah that’s what I think I missed. Fouled my new plugs up I think. But pulled them back out and got them all cleaned back up enough later. Thanks for watching!

[@joeyfaulks]

@@okspeedshop I just subscribed to your channel keep up the good work

[@larrydixon-vi7ld]

That poor engine is major wore out judging by the blowby coming out of the tube by the oil cap .

[@okspeedshop]

Valves were pretty grimy. It’s a straight 6 250 though. It never dies 😂