1981 Chevrolet Medium Duty Trucks GM185B
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- Опубликовано: 2 авг 2022
- This dealer-oriented video introduces the 1981 medium duty trucks and explains gas and diesel options, the new model lineup and competitive advantages. The programmable laserdisc still frames used for training have also been digitized and are found at the end of the video.
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It’s crazy how much cars and trucks advanced from just the early 80s to the late 80s. The early 80s was essentially the same as the 70s but by the late 80s cars and trucks were using turbos, fuel injection, ECUs, abs, etc all things that were rare in the early 80s
Trucks were using turbo in the 50's👍
I'm just in love seeing these old trucks brand new. As someone born in the 2000s, I've never been able to see these trucks in such a prestine state. Its really cool.
Same! 😃
I admire how essentially this is a Silverado cab, but enhanced with a new fascia and lifted to give it a Semi look.
Re framed for more capability
here in Brazil we had some chevy trucks too, It had a similar design, but with other cabin, beyond diesel and gasoline versions, we had alcohol version too, nowadays these alcohol and gasoline trucks was converted to natural gas, or had their engines replaced (usually mercedes benz engines)
I never even knew those existed. Wow
Agree, I always thought that was a rather clever application of parts commonality that no doubt kept costs down. A passenger cab already exists, so let’s use that.
It's amazing what gearing can do. If you were around at the time you know the speed limit was only 55 back then, yet most of these trucks struggle to make it to 50. If there was a little grade the driver would be rowing through the gears, the engine would be screaming near Red line, and the truck would be going like 20 mph lol
True Dat but then I Rev it to the max in low 4 and she gets up the huge grade
I grew up around older trucks like these. Chevy and internationals. You could do 60-65 of you were lucky. But the speed limit was only 55 so you were good. And didn’t need the hp to maintain 70mph. I love all the “kids” that buy those “retro” trucks and want them to go faster or so what a modern truck can do - which they just can’t. Totally different technology for a different application. In 1984 my dad bought some international dt466’s with a true ten-speed in a single axle dump truck at 35k gVW. He had them over built in the drive line and he turned up the pumps to make about 275hp. Those trucks were rocket ships compared to anything else. Very rare at the time yet common today. Compared to to todays trucks he and I still have and run three of them.
It seems to me going up a grade with those older engines, that it would have been far more efficient to run the engine no higher than a speed where peak torque was produced. Redlining the engine up hill at 20 mph is not taking advantage of the torque.
That orange and white stake body was a sharp looking truck.
I loved the big blocks paired with those whiny Allison Automatics...Those were great memories. I rode in a few Chevy Thomas buses and a couple of GMC Bluebirds.
These old videos just starting popping up I had to subscribe this was before my time but so interesting to see how old school productions use to be
So the 454 grew up to be a fuel injected 496 with 350 Net HP. That would have really set the world on fire in 1981.
I blame emissions. We went form big blocks and high hp. To freakin turds until computers caught up.
@Patrick Baptist although emissions equipment strangles the diesels too I have to agree with you. Even modern v10s in those big rv campers are no match for a diesel. You’ll pay more but It’s worth it in the long run.
Hence a 75’ motor home with a 454 and 37k just worn flat out, I’d like to find a bunch of those old brick shaped campers and put diesels in them, even some manual transmissions with a 2 speed rear axle. That’s a little crazy but it sure would pull good and be fun to drive.
Have a 8.1 2001 suburban 330k miles and it doest care was used tp pull heave construction trailers ive pulled over 15k with it and it doest care its a beast
It set a lot of Chevys and GMC's on fire too.
I had an 8.2 Fuel Pincher V8 engine (naturally aspirated) in a huge GM-chassis step van (86). I liked that engine and it ran well but had very smelly/dirty exhaust and was not very efficient or powerful. I liked how low it idled and the sound of it. Had a very stout Allison bolted on the back. I think that engine was in a lot of school busses at the time. They required rare expensive tools to adjust the injectors which is one reason they disappeared. No one could get the tools to keep them running or running well. These trucks of this era are just really nice looking in my opinion. I especially like those ones with the massive rectangular grill over the much smaller row of 8 rectangular headlights. A very unique and cool look, in my opinion. Thank you so much for posting this great video!
Back in the 90s, we had a new to us,1985 Brigadier 6 cylinder diesel with a 9 speed tranny and a 2 speed rear axle. My boss picked it up at a military auction. Can you believe they actually bothered to put cup holders in those trucks? The suspension was so rough you felt every single bump. It drove so rough, I probably spilled more coffee in that darn truck than I drank. 🤣 I told my boss, "If we don't get an air ride seat, I'm leaving. He just bought the truck, and he said it couldn't be that bad. I said ok,well go drive it for a couple hours. He came back about 20 minutes later, and I got the new seat about a week later. 😆 and a new CD player, but you really couldn't play any CD's because the ride was so rough that they were constantly skipping, and it was annoying. He was the best boss and just an all-around good person. Even after I quit to persu a different career. I still stopped in at quittin time once in a while to have a few beers with those guys.
Just learning how these trucks back then hauled and pulled the weight they did with the low numbers of horsepower and torque. I have a Chevy 3.0 l duramax that has 277 HP and 460 lb of torque which is much higher numbers and those trucks were hauling 24,000 to 50,000 pounds of weight. That was educational thank you.
Remember. These are SAE Gross HP numbers as well.
That means they were measured with no accessories, no air cleaner or exhaust headers, not even a water pump!
They had to switch to SAE Net for passenger cars in 1972 which was a big reason horsepower number fell so fast in the mid-70s (not just unleaded gas and emission) but I guess they were still allowed to use them for trucks… probably because of the accessories (air pumps, PTOs, hydraulic pumps, etc) that you might install.
I drove the GMC version, the Top Kick. It had the Cat 3208 and a 5x2. It must have been the standard 3208 because... damn was that thing slow. 😀
you are lucky 😂😂😂 here in brazil things was worst, they uses perkins engines and a inline 6 (292) for alcohol and gasoline versions, nowadays almost all of them had their engines replaced for others like mercedes benz, in early 80s chevy was the last manufacturer to offer gasoline engines here, at the time conventional cabins was obsolete in favor of cabovers, in 90s they tried sell conventional cabs (gmc kodiak) but It was a failure, both cabin and engine (cat 3116) had lot of problems, after that gm stop sell trucks here
@@natan762 Tainá Bergamaschi is from Brazil. She’s in the Death Metal band Crypta. I wish I was there to see her live! 😎👍
We had a Kodiak with a 13 speed and it flew!
Bro, I could listen to the guy explaining for ever!!
Pretty sure it's Johnny Carson...
Love to see these Chevy Trucks working!
Holy shit a ad from the eighties just taught me so much 😳 I wish I was around then
Hey, the only thing 'medium' about these trucks is the duty they do 😉
These were some awesome looking trucks, it's a shame they don't offer modern similar looking trucks with modern upgrades ofcourse.
These Chevy and GMC C60 and C70 trucks are still everywhere, I guess they're just that hard to kill!
Beautiful video. Full of useful facts and education.
Music in this one is great!
The narrator must have been very busy. I swear his voice is on almost all documentaries across a broad spectrum of topics
Got to love those daytons
These that the aerodynamics of a brick.
I used to drive a flat bed GMC Top Kick at work! It was a 6x6 It was as tall as the freightliner Cab over they owned! It was a cool truck!
Me, watching a RUclips video: god I hate these ads
Me, watching a RUclips video that is a 40 year old advertisement: god I love these ads
I have never. Ever. Ever seen those trucks at 3 minutes in. The blue one with the square headlights. Interesting look!
*Some of these are still on Duty*
my ex had a diesel, all she did was make noise, and explains the lack of spark, she was a definite medium duty criteria, but she had a great rear end, no supplemental restraints tho, and she always leaked... 🤔😑⚠️🚗🚘
Diesels no spark
Wym no spark? They don’t have spark plugs. Diesels are compression ignition engines
We arent talking about trucks anymore, are we??
If it dies, you can still use some of the parts too!
@@quietresource956 yeah that’s what he said
When the announcer said that the "Fuel Pincher" should be used for moderate loads/stop-and-go driving, that was a COMMANDMENT and not a suggestion. Those engines were under-engineered pieces of carp, with a warranty replacement rate of 50%, so bad that when Rodger Penske bought Detroit Diesel in 1988 he specifically told GM to he did not want them.
Thx
Some fascinating facts offered here. Also an 8.2 liter engine should really make much more than 165 horsepower- like twice that amount of horsepower. Ditto for torque ratings.
Not in the early 80's they didn't
And also remember that these are gross ratings. Today, all specifications are given as SAE net which means the accessory drive belt along with power steering pump, a/c condenser, and other parasitic drag losses are factored in to the stated figure. So the 165 HP is actually about 20% higher than would be reported for the same engine today.
those were old school Diesels. A 10 yr newer Cummins 5.9 with 12 Valves was only 180hp and around 400 torque.
Thank the EPA...
@@rosslarkin6742 net power ratings were adopted in 1972
I wish I could remember when GM gave up the 53 and 71 series Detroits for these trucks. Anyone??
1980 only they offered a 4-53t in the C50-60 trucks. about 2000 produced.
4-71T had as much torque as those other donks, and a 653N &653T had way more, Chevy just did not think🤷♂️🤦♂️
I saw one of these in west chicago subarbs the other day
Oh how the times have changed.
Brand new truck and the wheels are wobbling all over lol.
I like how he was talking about the Detroit fuel pincher but the truck said caterpillar powered
very beautiful 😍❤
8.2 Detroit is the most efficient way to turn Diesel Fuel into noise and smoke. Hopefully they are all in the junkyard.
I think you're thinking of the 2 stroke diesel ones. The 8.2 was 4 stroke and most of them did end up in the junkyard, I mean 165hp with 500ci is 3 ci per horse power which is awful even for 80s diesel standards.
FUEL PINCHER
Toroflow was early GM diesel 1970s bad.
Based on giant 60° V6 V8 gasser block
The Toilet Flow Diesel. I’ve not had the opportunity to work on one of those. I would guess most of them are in the salvage yard.
@@andyvonyeast332 I had gas 478M V6 good motors.
*sigh* I would love to buy one of these new. The first school bus i ever rode in was based on this platform. Diesel, of course.
Me gustan los tres camiones incluyendo el autobús
That Chevy Kodiak C70 is definitely a Snowrunner reference
time traveling Snowrunner reference, 40 years early
@@tommyw.9424 They knew of Snowrunner before it was even thought of
Old school chicago wobblers for the win!
have you here infomercials over chevys with propane /gas ?
is this a caterpilar 3208 engine in the red c65 at min. 6:36 ?
yes
Did GM make Top Kicks with a 4x4 K series?
Probably not but welders exist
@@bread-gz3rl Great answer 👍.
Refigure the numbers with diesel at 7.49 per gallon and gas at 5.49. I live in california if you didn't already guess.
Chevy trucks, powered by "Caterpillar" 3208, which is actually a yellow Ford 636 V8.
It’s funny now the Silverado 1500 have a 2.7t that make 310hp and 430ft-lbs only 2 engines for this 1981 truck had more torque back then. Still the 2.7 is not enough to be considered a truck engine by most.
Damn, those trucks really be like
o-----o
Those r medium?
i hated they quit making the kodiak
Surprised they left out gear ratios
Who is the announcer voice?
They showed a CAT 3208 V8 in red dump .
Not a Fuel pincher 8.2 😂
The yellow truck has the 8.2 litre fuel pincher diesel. The red truck is the Chevy Kodiak which has the big grill and the quad rectangular headlights with a Caterpillar 3208. There were two 8.2 litre diesel engines. Normally aspirated and turbocharged. The diesel engine is used for high mileage 12.000 miles (20.000 kilometers) or more per year, the gasoline 12.000 miles (20.000 kilometers) or less.
@@frankdenardo8684 yes I had a gas c60 350 V8 in NYC box truck excellent reliable cheap to fix.
Thanks
@@MitzvosGolem1 The 5.7 litre gasoline engine is very legendary. Around the mid 1980's the carburetor was replaced with electronic fuel injection which is more reliable.
@@frankdenardo8684 I have a few GM 6.0 and 5.3 Ls trucks vans best. One has 350k miles runs perfect
I am pretty sure that the narrator is Johnny Carson!
@scottc702 that isn't Johnny Carson.
Fast forward 40 years : “Do you haul anything or nothing at all? Do you want to feel like a macho badass, make lots of black smoke and whistling turbo noises? Then the diesel might be best for your application… Screw it, it doesn’t matter your application, just get the diesel, your ego will thank you.”
That intro music is so terrible it's good
what ? the 454 with 500 cu.in. big block have only 165 hp ? and with turbo 205 ?
the 454 have in the cars from 73 to 76 230 hp !
back when things were made to last
Last as a lawn ornament.
Back then you were luck to get 100k miles on an engine or trans. Today you can easily get 200k or even 300k on without even thinking about it.
Should have made the front of the box more aerodynamic....
Chevy and GMC trucks were good. No more in production.
big 3208 go brrrrr
Now this is what I care about hp tq price of fuel maintenance costs I could care less about a damn 20 inch touch screen sensors and so on
Front end looks like a boombox lol
Less maintenance costs for diesel. Not true anymore!
Yep. Those emission systems can be stupid expensive. Couple years ago we had a truck and the DPF went out. Apparently it needed that, the DEF warmer, also needed all new lines because the DEF crystallized, uh... What a mess. My boss ended up deleting it and they had to get it retuned and everything. It was almost $5,000
Narrator sounds a lot like Johnny Carson.
Visibility is diesel locomotive like ...
Truck in the thumbnail is BEEFY
Medium duty like: *A L L T H E*
*G R I L L E*
I did not realize they were using a engine out of a Silverado 1500 and 2500 to power a top kick. That goes to show how capable of these motors really were. Also I did not realize the 6.0 motor was that old. The 5.3 is a great motor but I think they should bring the 5.7 back as an added option.
Not the same 6.0 and the 5.3 is more or less a modernized 5.7
@@xxxdankengine2176 the 5.3 shares almost nothing with the old 5.7 they are two totally different engine architectures.
@@shawnhaas5158
Not true regarding the 5.7L LS.
The 6.0 they talk about here is the 366ci tall deck big block, has absolutely nothing to do with the modern LS based 6.0. The 5.3 will knock the socks off of a 5.7 truck, they're gone for a reason, and they'll never come back for emissions reasons alone if not anything else, remember standing behind a 350 truck even from the 90s and just smelling it? Great engines, just out of date.
@@tommyw.9424 My 98 Z71 Silverado 5.7 vortec dragged my 05 Z71 5.3 backwards like nothing and tows my car trailer better than the 5.3 unless that 5.3s rpms are through the roof that 05 5.3 vortec was a gutless torque less wonder.
I still see these all the time
Edit: oh my God I bet those gasser 4.8s are turds!
First hand experience with this. My grandparents got one used in the late 80s for their hardware store pickup and deliveries. My dad would help them with pickups since they were aging. I would hear him complain about how slow it was even before they loaded it down. In fact he had to modify his route to avoid a slight uphill grade after a stop light because the truck would barely make it up the hill. I don't think they sold too many with the 4.8. It was loud and sounded like it struggled everywhere it went loaded or not.
@@GenetrySolar I had one it had shitty drum brakes did he mentioned that the brakes were horrible as well
@@hfd268 nothing on the brake that I can remember. I was only about 7 or 8 at the time but I do remember the loudness of it especially when loaded.
I know medium duties used to all be pretty slow, but it's absolutely insane that they sold mediums with the 4.8 six. That was a dog engine in a pickup truck!
These trucks were shot after 3 years. Yet they managed to stay on the road for years. They were underpowered, loud, lousy ride, uncomfortable seating, hot as hell in the summer, cold as a witches tit in the winter, and had poor visibility. I remember the first time I drove a Mitsubishi Fuso and fell in love. I never drove those American-made wrecks ever again.
This feels like half the views are from snowrunner players
Snowrunner 🤨🤨📸📸📸📸
Ok so im ready to sell 1981 chevrolet medium duty trucks now. I have been programmed
b i g g r i l l
There's a lot of scienticity going on in this video...
Saw more GMCs heavy duties than Chevrolets even though they are the same
Chevrolet Will Be Angry At Thomas
If you can’t design a Diesel engine for full load performance, you have failed as an engineer.
Sadly soon all combustion cars and trucks including classics will be banned from public streets in entire EU and Scandinavia :-(
In Germany the Green Peoples Party gave order to shorten fuel supply from 2025
on by reducing all conventional fuel stations to only one state operated central gas station per city or county. Car washs will be forbidden too because they are climate killers, now they want to slow down all the gas station pumps from 20 litre per minute to 2 litre per minute...From 2027 on in the EU certain car spare parts will be banned too....as exhaust systems, turbo chargers and even some engine and gearbox oils...California and New York will do the same from 2027 on.... So no investments should be done in oil burning cars any longer....They even created a new kind of crime here, called emissions and smoke crime. (BABVVEN & TEBBVEN & BEFVO laws)!
Then you best grow some balls and rise up.we all know the climate scam is exactly that,a scam!
Boy, did these trucks stink. 8.2 was pretty close to the worst diesel ever. Cat 3208 was better in its day but cheapskates that spec'ed these never ordered it, the 8.2 was cheaper. Gas engines almost better in these chassis. Either way, foot mashed to the floorboard, heat burning through the bottom of your shoe. These were the bad old days and the grille on the larger ones, ugly as a mud fence. How did that monstrosity leave the drawing board.
Ford cab/chassis were somewhat better but GM tried to sabotage them by selling the same lousy 8.2, open the hood of the Ford and the blue GM square staring back at you.
Those puny mufflers must have chalked those poor engines too death
Very little difference.
If a muffler impeded flow that much than all engines would be dead
Detroit diesel or cat and octopus wheels god were those ugly
Snowrunner 😊