Lorry rear diff ratios

[Bob lincs]

Would anyone have a rough idea what rear diff ratio would be on an easily available rear axel off a tractor unit ? Something like a 420 scania or Volvo . I’ve have a idea for a project but need to know this info before I can go any further .

 

[Lincs Lass]

Sounds like a powered boogie on the cards

 

[Bob lincs]

Sounds like a powered boogie on the cards

Nope

 

[Mursal]

3:1 but if it has hub reduction to reduce the stress on the halfshafts this ratio will be across both diff and hubs.

 

[Mur Huwcun]

Have a look on here, unfortunately a lot of different ratios are available. I remember the Williams Haulage drivers commenting that their flatbeds on Ifor Williams delivery work were fitted with a Coach diff fir fuel economy due to running very light loads.

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[Speedstar]

Would anyone have a rough idea what rear diff ratio would be on an easily available rear axel off a tractor unit ? Something like a 420 scania or Volvo . I’ve have a idea for a project but need to know this info before I can go any further .

could be any thing a 4.88 is common or some would run a 5.29 depends on what you are wanting to do , you can buy any ratio you like if you use Rockwell or ZF or mec

 

[Drillman]

Sounds like someone is gonna build something a bit faster than JCB recently made??

 

[essexpete]

Are 2 speed axles still built for commercials?

 

[miniconnect]

could be any thing a 4.88 is common or some would run a 5.29 depends on what you are wanting to do , you can buy any ratio you like if you use Rockwell or ZF or mec

Would you know what rpm truck hydraulic pumps powered from the PTO are designed to be run at?

 

[Speedstar]

Would you know what rpm truck hydraulic pumps powered from the PTO are designed to be run at?

The hyd tipping gear will run about 1400rpms I think will depend on the system

 

[Speedstar]

Are 2 speed axles still built for commercials?

Not be many with a 2 speed rear axle now

 

[ridger]

Would anyone have a rough idea what rear diff ratio would be on an easily available rear axel off a tractor unit ? Something like a 420 scania or Volvo . I’ve have a idea for a project but need to know this info before I can go any further .

There is a land drive slurry tanker local to me that has a daf lorry axle on it. They kept the old 6 speed gear box and drive shaft on it, and run it in 3rd gear