[sptrucker]

just out off curiosity can anyone tell me what is the difference between regular 40,000lbs differentials,and super 40s.thanks for any info and have a nice evening.:thumbsup:

[allan5oh]

There's no such thing as "regular" 40,000 lb axles. There's still a lot of variation. Super 40's have a GCW rating of 140,000 lbs, most others are around 110,000 lbs.

[sptrucker]

thanks for the reply,now i have another question ,what is GCW.

[allan5oh]

Gross Carrying Weight. You don't see many super 40's down south because Americans don't haul much weight. Super B's up here are legal to just a hair under 140,000, so you see super 40's a lot more.

[sptrucker]

thanks again allan .:bow:

[Les2]

Originally Posted by allan5oh

Gross Carrying Weight. You don't see many super 40's down south because Americans don't haul much weight. Super B's up here are legal to just a hair under 140,000, so you see super 40's a lot more.

Now that there is funny...LMAO

Nah, 80-86k payload on 5 axles isn't much weight! It's nothing like what, 100-105k payload on 8, 9, maybe 10 axles...LOL

Sorry you folks up there in the attic are funny sometimes, plus I'm bored...LOL

[allan5oh]

Thing is an 80k GCW can be put on just about anything, even single axle trucks. Once you go 140,000 GCW you need super 40's or something even larger. I don't know the meritor/rockwell equivalent, there may not be. You might have to go with 46k axles.

It is not gross carrying weight, it is gross combination weight. The weight of everything, including trailers and cargo.

[Roadhog]

Don't forget us Michigan B-Trains...
Our 11-axle outfits can legally scale at 164,500-lbs GW.
We do allot of tandem-nine-quad-nine set ups on the steel haulers.
My brother-in-law runs one out of the Soo to Detroit.

[allan5oh]

And your interstates show it! Beat to hell!

[Roadhog]

No sir.
I am talking about Michigan B-Trains, and our I-75 is in very good shape.