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Big bolt range
#144592 Thu Oct 13 2005 03:40 PM
Joined: Feb 2005
Posts: 92
kwf Offline OP
Shop Shark
I came across a GMC Astro close to my home a while back and it got me to wondering. Would the range of years for big bolts be the same as the smaller stovebolts, pre '73? Or is it a different span of years? I ask because GM starting making the Astro and Chevy Titan in 1969 and I really liked those trucks.

Re: Big bolt range
#144593 Thu Oct 13 2005 06:43 PM
Joined: Dec 2001
Posts: 1,814
I guess I was thinking of the wrong van. This is all I could find on your truck, this is a \'74.

54 3100 with 235
62 flatbed dump C60 with 261
Re: Big bolt range
#144594 Thu Oct 13 2005 08:38 PM
Joined: Feb 2005
Posts: 92
kwf Offline OP
Shop Shark
Thanks for the picture Tony. That's the truck I'm talking about. Would it be alright for the stovebolt big bolt section if it's pre '73?

Re: Big bolt range
#144595 Fri Oct 14 2005 12:47 AM
Joined: Nov 1995
Posts: 1,188
Shop Shark

By all means! It's a pre-'73 Stovebolt so it's good to go according to our guidelines.

At some point we may get more detailed in our guidelines but I really don't want to go there...

The only guideline on the books is that it has to be a pre-1973 model year truck (includes vans, both regular vans and Corvair vans) and made by a manufacturer that has been affiliated with the General Motors Corporation (such as Chevrolet, GMC, Samson, Republic, etc).

Hope that clears it up!


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Re: Big bolt range
#144596 Fri Oct 14 2005 02:29 AM
Joined: Nov 2004
Posts: 2,072
Workshop Owner
Wow, that is cool, and about as big as they get! Now we need to start a pool, to see how long it takes for someone to start asking questions about how hard it would be to swap the cab to a S-10 frame so they can get an improved ride and better fuel mileage.
OK just joking.
But just out of curiousity, does anyone have any information on what was the largest (Chevrolet or GMC) model and year it would have been manufactured?
The truck in the photo, would have been considered a Cab Over Tractor, correct? Which, also would be an entirely different class than a COE? I would also think that all of that size or model, would require a CDL (special license).
Do we have any members, that may be able to enlighten us on the really big ones, just for curiousity sake?

J Lucas

1941 Chevy 1/2-Ton
1942 Chevy 1.5-Ton SWB
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Re: Big bolt range
#144597 Fri Oct 14 2005 05:25 AM
Joined: Mar 2004
Posts: 5,016
I know this is streching the 1973 rule a little, but this Chevrolet Bison is a REALLY BIG BOLT. The Chevrolet Bison was made from about 1976 to 1980 and were rated up to 64,000 pounds (CDL required). This one has a whopping 28,000 miles on it and is owned by a fellow ATHS club member.

The Astro/Titan [COE] and General/Bison [Conventional] could all be configured as tractors or straight trucks, just depends on what the buyer wanted

Mike B smile

Re: Big bolt range
#144598 Fri Oct 14 2005 03:38 PM
Joined: Feb 2005
Posts: 92
kwf Offline OP
Shop Shark
That is a nice truck. The silver and black truck to the right in the picture is one of my all time favorites. In fact there are a couple of those on right now.

Re: Big bolt range
#144599 Sun Oct 16 2005 09:33 PM
Joined: Feb 2004
Posts: 22,146
One of the wreckers I drove while working at a heavy-haul towing service was a GMC Astro with a 430 HP Detroit Diesel 8V-92 engine and a 13 speed Fuller Roadranger transmission. I've hooked up to fully-loaded 18 wheelers (80,000 lbs.) and rolled away without a problem. The Astro or the Bison could be ordered with just about any type of engine, Cat, Cummins, Detroit, etc., and virtually any transmission/rear axle combination. Under the skin, heavy-duty trucks are pretty much clones. Some of the older conventionals even used the same cab assemblies, and just changed a little trim to make them look different! The 1961 Diamond Reo I drove prior to the Astro shared a lot of cab parts with Kenworth and Peterbilt!

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Re: Big bolt range
#144600 Mon Oct 17 2005 01:03 AM
Joined: Jul 2005
Posts: 227
Cruising in the Passing Lane this is pushin it...hehehe GMC (corporation) also makes off road heavy equipment trucks. Terex. Mining trucks...hehehe The old Terex's I worked on for awhile hauled if i remember right 75 Tons in the dump bed. They were powered by Detroit 16v92's (two 8v92's bolted together)You could stand up, walk under the truck to change oil.... the bed on the truck was 16ft wide. Now thats a big bolt...hehehehe

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Re: Big bolt range
#144601 Mon Oct 17 2005 04:01 AM
Joined: Jan 2005
Posts: 1,687
Extreme Gabster
I've always wanted somethin' with ten forward gears and a Georgia overdrive.

an idea is only stupid if you think about it rationally.
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