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C10 - C90 Bill 02-26-2022 09:54 AM

Re: GM Semis
 
Quote:

Originally Posted by Bob B. (Post 9043396)
Just a couple and they were HE series fire engines. Seems that mose 637's came with large Spicer 5 speeds but the consensus seems to have been they needed more gears. A 10 speed or 5X4 would probably have ideal.

I have to say that it was a pretty good match. I have also seen (in pictures) a few with 5X3's and 5X4's. I'm surprised that the 10-Speed wasn't standard, like it pretty much was with a Detroit. But, especially with Firetrucks, they may have wanted a Trans that was Synchronized.

Which reminds me of the '68 Long Nose I saw a few years back. It had a 6-71 instead of an 8V-71 but to my surprise, it had a 5 and 2 (2-Speed Rear). I had never seen one in a Long Nose before but sure enough, it was a former Firetruck.

KQQL IT 02-26-2022 12:39 PM

Re: GM Semis
 
1 Attachment(s)
Neato tanker

NewBayColony 02-26-2022 05:20 PM

Re: GM Semis
 
1 Attachment(s)
Another beauty from Pacarhauler! Looks like a 62 Biscayne behind the cab.
Attachment 2173163

KQQL IT 02-26-2022 06:21 PM

Re: GM Semis
 
The 62 4x4 shorty tho

regan wilson 02-26-2022 10:43 PM

Re: GM Semis
 
Quote:

Originally Posted by KQQL IT (Post 9043651)
The 62 4x4 shorty tho

There's a C-30 and a Corvair Pickup on there too.

factorystock 02-27-2022 12:47 PM

Re: GM Semis
 
Quote:

Originally Posted by regan wilson (Post 9043767)
There's a C-30 on there too.

:confused: A GMC factory flatbed it appears to me, however, hard to tell if its a 3/4 or 1 ton FB, unless the wheelbase or rear suspension is more visible.

factorystock 02-27-2022 12:48 PM

Re: GM Semis
 
Quote:

Originally Posted by KQQL IT (Post 9043651)
The 62 4x4 shorty tho

IMO,that would be the jackpot of that load!

KQQL IT 02-27-2022 01:10 PM

Re: GM Semis
 
Quote:

Originally Posted by factorystock (Post 9043984)
IMO,that would be the jackpot of that load!

That's what I was thinking. Probably lowest production numbers on the load.
Where that 4x4 factory in 62 or a conversion.
My pre 73 history is lacking.

factorystock 02-27-2022 01:25 PM

Re: GM Semis
 
1 Attachment(s)
Always wondered the difference in HP between turbo and non turbo.

C10 - C90 Bill 02-27-2022 01:32 PM

Re: GM Semis
 
Quote:

Originally Posted by KQQL IT (Post 9043989)
That's what I was thinking. Probably lowest production numbers on the load.
Where that 4x4 factory in 62 or a conversion.
My pre 73 history is lacking.

A friend of mine has an original '64 1/2 Ton 4 X 4 with a factory 3-Speed on the Column yet. It was the first one I ever saw.

Edit: Wrong info posted earlier deleted.

streetrodchev 02-27-2022 11:29 PM

Re: GM Semis
 
Starting for the ‘60 model year, GM did the 4x4 in house on the 1/2 and 3/4 ton trucks.
Prior to ‘60 it was a NAPCO conversion.
It was also a NAPCO conversion on the 1 ton and heavier trucks from ‘60 until???
GMs first in house 1 ton 4x4 was 1977.

C10 - C90 Bill 02-28-2022 10:05 AM

Re: GM Semis
 
Quote:

Originally Posted by streetrodchev (Post 9044234)
Starting for the ‘60 model year, GM did the 4x4 in house on the 1/2 and 3/4 ton trucks.
Prior to ‘60 it was a NAPCO conversion.

I stand corrected. The '58 and '59's looked factory to me, but I now see factory 4 X 4's didn't start till '60 as you have stated.

streetrodchev 02-28-2022 10:56 AM

Re: GM Semis
 
Starting in ‘57, you could get a truck new from the dealership with the NAPCO conversion. (It didn’t leave the factory as a 4x4).

KQQL IT 02-28-2022 02:19 PM

Re: GM Semis
 
1 Attachment(s)
Another of the jimmy fuel tanker

Bob B. 03-01-2022 02:09 AM

Re: GM Semis
 
Quote:

Originally Posted by factorystock (Post 9043997)
Always wondered the difference in HP between turbo and non turbo.

GMC offered the 6-71T early on in the 970 series around 1957 rated at 235 H.P., when most 6-71's were 180 H.P.. They must have dropped the engine option sometime before 1960 because I can't find any records of it after. I don't think the 6-71T returned to GMC's until the early 80's.

regan wilson 03-02-2022 08:28 PM

Re: GM Semis
 
Quote:

Originally Posted by Bob B. (Post 9044671)
GMC offered the 6-71T early on in the 970 series around 1957 rated at 235 H.P., when most 6-71's were 180 H.P.. They must have dropped the engine option sometime before 1960 because I can't find any records of it after. I don't think the 6-71T returned to GMC's until the early 80's.

I wonder if the reason was turbo failures. That was one reason it took so long for the turbocharged cars and trucks to come about. The old Turbo Trans Am is a good example.

C10 - C90 Bill 03-02-2022 08:49 PM

Re: GM Semis
 
Quote:

Originally Posted by regan wilson (Post 9045299)
I wonder if the reason was turbo failures.

That does sound familiar. I believe I read some details about that somewhere.

special-K 03-04-2022 09:31 AM

Re: GM Semis
 
I sure like those lo-pro tankers. That Cannonball needs a chop top and lowered on airbags :lol:.

I bet it was warranty costs that halted the turbos. I just looked at a YouTube video that was a '62 Olds ad for the new Jetfire. That car was a leap forward. They didn't talk about the rear transaxle/independent suspension. It was all about that 215 aluminum V8 with turbocharger that put out 1hp per cubic inch. They put three years into development. but one thing different was they had a fluid you added under the hood, which I imagine either helped cool or lubricate, or both. And I bet buyers didn't keep up on that. We didn't see turbos used for a long time after those.

Bob B. 03-05-2022 02:30 AM

Re: GM Semis
 
Quote:

Originally Posted by special-K (Post 9046061)
I sure like those lo-pro tankers. That Cannonball needs a chop top and lowered on airbags :lol:.

I bet it was warranty costs that halted the turbos. I just looked at a YouTube video that was a '62 Olds ad for the new Jetfire. That car was a leap forward. They didn't talk about the rear transaxle/independent suspension. It was all about that 215 aluminum V8 with turbocharger that put out 1hp per cubic inch. They put three years into development. but one thing different was they had a fluid you added under the hood, which I imagine either helped cool or lubricate, or both. And I bet buyers didn't keep up on that. We didn't see turbos used for a long time after those.

I think only the Pontiac Tempest version had the transaxle/IFS, the Olds F85 and Buick Special had a regular rear axle with coil springs.

Yeah, didn't see turbos on cars for some time after that one!

factorystock 03-06-2022 03:43 PM

Re: GM Semis
 
2 Attachment(s)
Quote:

Originally Posted by Bob B. (Post 9044671)
GMC offered the 6-71T early on in the 970 series around 1957 rated at 235 H.P., when most 6-71's were 180 H.P.. They must have dropped the engine option sometime before 1960 because I can't find any records of it after. I don't think the 6-71T returned to GMC's until the early 80's.

Maybe a "special order" engine in GMC's during the 70's.

Bob B. 03-06-2022 07:22 PM

Re: GM Semis
 
Quote:

Originally Posted by factorystock (Post 9047160)
Maybe a "special order" engine in GMC's during the 70's.

Possible it was some kind of SEO on GMC's. 6-71T's were built for other make trucks in the 70's though. Seem to remember seeing some International S series trucks with 6-71T's in the late 70's.

special-K 03-07-2022 08:10 AM

Re: GM Semis
 
1 Attachment(s)
Quote:

Originally Posted by Bob B. (Post 9046485)
I think only the Pontiac Tempest version had the transaxle/IFS, the Olds F85 and Buick Special had a regular rear axle with coil springs.

Yeah, didn't see turbos on cars for some time after that one!

That body was used for a lot of firsts. I get them confused between makes. There is one with a transaxle rolled up on it's side, for decades, at this abandoned property not far from me. I thought I remembered it was an Olds. I remembered wrong

Now for a crowned jewel of a GMC. It leaves me struck in total awe.

KQQL IT 03-24-2022 10:59 PM

Re: GM Semis
 
1 Attachment(s)
Cracker box with biscuits on

sodly 03-25-2022 10:39 PM

Re: GM Semis
 
1 Attachment(s)
Put a bunch of miles on this 1981 C70 back in the day. 8.2 Detroit turbo and a 5 speed Allison automatic. Not exactly a powerhouse, lol. Doesn't look this nice anymore, unfortunately. Trying to decide what to do with it.

special-K 03-27-2022 08:09 AM

Re: GM Semis
 
1 Attachment(s)
Handsome tandem

I think this one is a '66

KQQL IT 04-03-2022 11:01 AM

Re: GM Semis
 
3 Attachment(s)
Factory stock
Not so stock
And a great hay hauler

Winchrig 04-13-2022 11:35 AM

Re: GM Semis
 
2 Attachment(s)
Here’s two I got a few years ago. A 1965 gmc 5000 (not sure) with a toro flo diesel and a 1964 gmc b7000 twin stick winch truck. Both have been in the family for a long time.

C10 - C90 Bill 04-13-2022 02:42 PM

Re: GM Semis
 
The '65 is most likely a 5000. They didn't put a Toro-Flow in a 6500.

Cool trucks.

What does the 7000 have for an Engine?

special-K 04-13-2022 05:12 PM

Re: GM Semis
 
Is that straight pipes on the Toroflow? What does that sound like?

And welcome to the board! You have a couple cool GMCs

Winchrig 04-14-2022 09:32 AM

Re: GM Semis
 
The 7000 has a Detroit 6-71 and the toro flo is not straight piped.

Winchrig 04-14-2022 10:27 AM

Re: GM Semis
 
My cousin was dragging the 7000 around and it accidentally pull started and hit the loader, it sheared a piece right off the pipe bumper and wrecked the passenger side fender and hood.

C10 - C90 Bill 04-14-2022 02:24 PM

Re: GM Semis
 
Quote:

Originally Posted by Winchrig (Post 9066682)
My cousin was dragging the 7000 around and it accidentally pull started and hit the loader, it sheared a piece right off the pipe bumper and wrecked the passenger side fender and hood.

Reminds me of my friend's '69 Mack R-700. He bent the front bumper and got the loader out to try to straighten it. Out of a strange co-incidence, he left the truck parked in Reverse. The 8V-71 fired up and started moving backwards. Luckily the trailer brakes were still holding and it finally stalled out. He would have had a lot more trouble than a bent bumper!!

Winchrig 04-14-2022 02:34 PM

Re: GM Semis
 
Wow, he got pretty lucky. I will post a video of the toro flo next time I get it going.

Bob B. 04-15-2022 12:29 AM

Re: GM Semis
 
Quote:

Originally Posted by special-K (Post 9066277)
Is that straight pipes on the Toroflow? What does that sound like?

And welcome to the board! You have a couple cool GMCs

I have seen Toroflow trucks with dual stacks but horizontal mufflers under the frame. C series and tilts. Must have been an option.

special-K 04-15-2022 09:36 AM

Re: GM Semis
 
I wondered if that's what it had. I don't think I'd want to show off a Toroflo by running straight pipes.

These stories of self-starting diesels are interesting.

Winchrig 04-15-2022 07:39 PM

Re: GM Semis
 
That’s what this one has, the horizontal mufflers in the frame.

C10 - C90 Bill 04-15-2022 09:50 PM

Re: GM Semis
 
I would love to hear one with Straight Pipes, lol.

Speaking of loud, my 478 had what I believe were factory type straight thru's. Duals, of course. One day the pipe broke open before one of the mufflers. I can just imagine it with straights, lol.

special-K 04-16-2022 09:57 AM

Re: GM Semis
 
1 Attachment(s)
I'd like to hear it, but wouldn't want to be running it that way very long

I'd like to see a picture of that Toroflow emblem up close. That's a rare item right there

Has this one been shown yet?

C10 - C90 Bill 04-16-2022 04:42 PM

Re: GM Semis
 
That truck sure is a beauty. A '64 and if it has a 409, it would be a C-80.

Here are some pictures of Emblems from Jolly's site, including the Toro Flow:

http://6066gmcguy.com/emblem.html

My '67 7500 with the 6V-53 still had the Toro Flow Emblems on the butterfly hood. It was what it once had before it got converted.

factorystock 04-16-2022 09:36 PM

Re: GM Semis
 
1 Attachment(s)
Great looking '64 tractor, thanks for sharing special-K. IMO, these Chevies look best when they are correctly painted, especially the front end, as this one is. Hard to say if it's an 80 or a 60H model, these trucks require close photos of the emblems to tell. The Toro Flo is quite an engine, GM attempt to get a diesel to the medium duty market without a premium price tag.


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