73-87 1-ton capacities
 

didnt reall know what else to call the thread but whatever, i was wondering of the 73-87 1 ton which year would be the heaviest duty? (like payload capacities, axles, etc.)

Re: 73-87 1-ton capacities
 

They may have gotten a bit heavier towards the end of their run, but I would think most 73-87 1 tons are about the same. They can vary within the model year from about 8,800GVW to over 10,0000GVW. In most 1 tons I believe you will find the 14 bolt full floater rear end.

Interestingly my '73 3/4 ton is only rated 800lbs less than my '79 1 ton. (8200 vs 9000 GVW)

Re: 73-87 1-ton capacities
 

Some of the "1 ton" Cab and Chassis actually are 11,000 gvw.

Re: 73-87 1-ton capacities
 

Like he said it will vary depending on 4wd/2wd, cab/bed configuration, SRW/DRW, etc. Also 14 bolt FF came in later model years, earlier ones had the Dana 70 rear.

Re: 73-87 1-ton capacities
 

As mentioned the above factors all affect the capacity of the truck. If you're looking to Max capacity you'll have to roll with a dually. :smoke:

Re: 73-87 1-ton capacities
 

I have a 1991 V3500 same as an 86 k3500 (same idea as the burbans/k5s)
dana 60 front 14 bolt rear factory overload springs.
its set for 9900#

EDIT its an SRW truck and came with 16's not 16.5's

Re: 73-87 1-ton capacities
 

I'll have to check the GVWR on my 78 K30 Dually tonight when I head out to the gym, it's pulling DD duties right now:devil:

Re: 73-87 1-ton capacities
 

well i was most likely goin with a crew cab dually 4x4, preferably an 80s one because i like the style of the front end and interiors, and at some point i was goin to upgrade the rear to a dana 80 with 3 inch wide leafs, probly do that after i get the money to do a diesel swap

Re: 73-87 1-ton capacities
 

Checked mine, it's 10,000 GVWR

Re: 73-87 1-ton capacities
 

Hello,

My '84 K30 cab-and-chassis has a GVW of 11,000 lbs. For what its worth, the cab-and-chassis frames were slightly heavier than the K30 pickup frames (either SRW or DRW pickups). Channel height was the same, but rails were approximately .030" thicker. They also have a heavy crossmember for the rear cab mounting, as opposed to the individual mounting brackets found on the pickup frames. Just something to think on...:)

Hope this helps,

Joe
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Re: 73-87 1-ton capacities
 

A friend of mine just bought a 79 GMC High Sierra 35 1 ton ex firetruck and I dont know much about it other than it was GVWR at 27,500!!! We have no idea why just thought it was very odd

Re: 73-87 1-ton capacities
 

Something sounds off there. Sure it didn't possibly have a door plate off a C60 or something? The GCWR should not even be that high. Maybe someone messed up the door at some point and replaced it with one from a junkyard medium duty truck.

If that was true, he would have to have his CDL's to even drive the truck.

Re: 73-87 1-ton capacities
 

Oh yeah definitly think it is weird, so I dont think he has figured that outyet, just seems really odd thats what was listed on the title, its was nothin special just a one ton fire company air truck

Re: 73-87 1-ton capacities
 

My 88 2wd crew cab dually come from the factory at 10,000 pound, but I think I read that the crew cab dually 4x4 was 11,000 from the factory. Then I have a 79 k-30 single wheel that is 9200lb, which is ironicly the same as my old truck I had, an 82 3/4 4x4 with the semi-floater 14 bolt...

Re: 73-87 1-ton capacities
 

My rollback is made on a 1977 GMC Motor Home Chassis...GVW is 14,500

19.5 wheels and 4 wheel disc brakes..454 th400 and gets the job done..truck is 7,000lb's empty..Have been on the scales at 16,800 loaded..

frame is doubled from factory over rear axle.

Attachment 661946

Re: 73-87 1-ton capacities
 

very nice rollback you got there, like the color and stacks :metal:

Re: 73-87 1-ton capacities
 

This should answer all your questions.

GM Heritage Center

Re: 73-87 1-ton capacities
 

Is that the one off CL for $900.00?

Re: 73-87 1-ton capacities
 

Awesome link!!! :metal:

Re: 73-87 1-ton capacities
 

yea i checked that place the other night and found ALOT of usefull info on there