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3/4 ton vs. 1 ton

big dan said:
x2. there are some exceptions in newer trucks though. like my mom's 2500 '05 dodge, d60 front d80 rear just like the 1-tons. on our trucks though, 3/4ton and 1-ton uses different front axles and frames.
That would be an AAM 9.75" up front and an AAM 11.25" in the rear.
 
In the 4wd world, people like to say the difference between a 3/4 and 1 ton is the front axle, trivilizing the actuall rating. With that, once people put a D60 in front, they now have a 1ton. No...you don't. That drives me nuts.:haha:

A 1 ton on the older trucks has a different frame and heavier springs. THATS what makes it a 1 ton, not the front axle. With that, they happen to USE a D60 to handle the WEIGHT rating, not for 4wheeling purposes as so many think it's made for.:p:

On today's truck it's an overload spring, plain and simple.

So....if you have say a 1/2T K5 with a D60 and 14bt....it's a 1/2ton K5 with a D60/14...not a 1 ton K5.:p: EVEN if you swap in part of a K30 frame and use K30 springs, it will likely never be a 1 ton since it's wheelbase physically limits it to ever towing/hauling enough weight that would be considered heavy enough to fall into a 1 ton weight class.
 
On the newer rigs, the only real difference between a 2500HD and 3500 SRW would be the torsion bar rates and leaf spring rates and number of leaves.
 
makovai said:
So lets talk any blazer from the 70's.
If a guy says he has a 1 ton K5, what would be your guys opinion other than axles her would have to mod?


i say transmission is a big one. I cringe more than usual when someone says they have a 1 ton blazer with a 700r4 in it :doah:
 
bowtiepower00 said:
On the newer rigs, the only real difference between a 2500HD and 3500 SRW would be the torsion bar rates and leaf spring rates and number of leaves.
so you're saying that the brakes are sames too?
 
On newer SRW trucks (assuming we are comparing models with the FF rear), the brakes should be the same, the only real differences relate to weight ratings for towing and hauling, and then really only in the payload department. Now, if you're comparing a Dually to a SRW truck, there will be some more differences, like rear brakes. The older the generation of trucks, the more differences you will find.
 
Lets go another direction.
I have a 72 blazer that now has a 8 lug D44 and a 14FF all from a 78 3/4 suburban (i beleive) What else would it take to make this rig a full 1 ton?
In your opinion.

So far i'm getting frame improvements or replacement
Tranny (prolly like a T400)
Also, wasn't there a bigger m/c and booster?
???
 
The 8 lug D44 would be considered 3/4 ton all the way. If you put a beefier tranny, and 1 ton (D60) front in it, less ppl would cringe when you referred to it as 1 ton. When ppl say 1 ton, everyone here knows they are mainly referring to axles
 
I guess the real core of the question here is "what does the tonage rating mean"?

I am sure it has changed over the years. Can a 1960's "1 ton" do the same job (towing, and hauling) as a 2007 "1 ton"?

It "seems" like I keep seeing newer "1/2 ton" trucks that have hauling and towing capacities that may exceed older "3/4 or 1 ton" trucks.

So what does it really mean?
 
Xtremjeepn said:
I guess the real core of the question here is "what does the tonage rating mean"?

I am sure it has changed over the years. Can a 1960's "1 ton" do the same job (towing, and hauling) as a 2007 "1 ton"?

It "seems" like I keep seeing newer "1/2 ton" trucks that have hauling and towing capacities that may exceed older "3/4 or 1 ton" trucks.

So what does it really mean?

good point. i have just noticed its more cut and dry with 1/2 ton to 3/4 ton than it is with 3/4 ton to 1 ton
 
makovai said:
Lets go another direction.
I have a 72 blazer that now has a 8 lug D44 and a 14FF all from a 78 3/4 suburban (i beleive) What else would it take to make this rig a full 1 ton?
In your opinion.

Impossible, the wheelbase of a K5 will never let it physically tow enough weight to get into a 1 ton weight rating.
 
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