Looking on getting an affordable rig to start hauling water. Looking for suggestions on rear end set up for oilfield.
Super 40 vs 40 rear ends.
Discussion in 'Ask An Owner Operator' started by Oilfield driver82401, Feb 18, 2022.
Page 1 of 2
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
Super 40's are definitely stronger than 40's they were made more for long distance heavy work imo. Guys in the bush with logging trucks would seem to go for the full out 46's whereas the guys hauling lumber trains from the mills to the customers would go for the super 40's. In both cases grossing out at 135-140000lbs. One bad thing is when it's time for a rebuild expect to pay some $$$$ compared to a standard 40 rear end. That being said there's a lot of 15-20 year old heavy haul trucks out there with super 40's that haven't been rebuilt yet. Your choice. Pay now or pay later lol
Vampire and dirthaller Thank this. -
There is a misconception about what “Super 40’s” really are. Some people believe that 40 diffs in thicker housing (DS405 for example) are super 40’s.
IMO super 40’s are 46 diffs in slightly smaller housings (DT40-170 for example). Inn this case you only save about 50 pounds of weight on a set of tandems however, some OEM manufactures won’t let you spec a road truck suspension, like low air leaf for example, with full 46 diffs. Full 46 diffs are usually speced with heavy duty suspension like Neway.Last edited: Feb 18, 2022
-
If you can do super 40's or 46k rear ends.
With water you usually overload yourself and you don't want to blow your rear end because it couldn't handle it.Vampire Thanks this. -
The safe side is to have the other parts of the drive line heavier than the rear ends so you don't have drive shafts laying in road?
-
The only real difference is a 3/8” housing vs 1/2” on most depending on which 40, and which 46 rear is specd, also the frame slipper by the 5th wheel
I do quite a bit of running 100+k on my 404sshooter19802003 and Vampire Thank this. -
shooter19802003 Thanks this.
-
shooter19802003 and Vampire Thank this.
-
BTW it’s been almost a decade since I’ve speced a new truck so the nomenclature may have changed. But the Eaton/Fuller/Dana/Spicer…..or whatever Eaton calls themselves these days…..Rear ends in question were DT46-170 (46k) and DT40-170 (super 40) again the only difference between the two is the housing thickness (1/2” vs 7/16” IIRC) you can’t tell them apart at a glance and the difference is only 50 pounds for a set of tandems. I would go ahead and just get 46’s unless you absolutely want a LowAir, Flex Air, AG 400L, AG 380 or some other light duty highway suspension.
Vampire Thanks this. -
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 2