Testing to see if a car has a quaife diff

[sam JFM]

Hi guys,
There a way to test to see if a car has a quaife diff fitted without driving it?

I'm thing jacking it up and turning the wheels (assume two people - one on each wheel ) I would think that if someone holds one wheel (with a socket on the hub for example) and someone else turns the other wheel then they should both try to turn in the same direction?

Can anyone try that for me?

Cheers
Sam

 

[Daniel Bellwood]

General rule of thumb, if its lsd both wheels in the air spin one wheel and the other should spin in the same direction. If it's open diff they will both spin in different directions

 

[bashracing]

the quaife is auto torque biasing so would require someone to hold the other wheel to provide resistance, they should try turning in the same direction when you try to rotate your wheel but won't feel fully locked. if it's for rallying spend your money on a gripper diff instead

 

[sam JFM]

New project more soon lol, so would my test work?

 

[bashracing]

yes but simply holding the wheel would do it, no need for sockets on hub nut etc

 

[Martin_172]

do a burnout see if it will leave 11's lol!!

 

[sonny172cup]

or drop the gear oil and under the wet side (near side) drive shaft and check the part/serial number on the diff/shaft house, will be written on the inside.

 

[Ex-User (19928)]

Basically what Martin said.

You won't be able to apply enough torque by hand to get the diff working.

 

[sam JFM]

Could someone with a quaife have a mess and try it for me? I need to confirm if a car I am buying has one - doing burnouts isn't an option lol

 

[sonny172cup]

My cars a non starter at a mo so not possible. If your buying a car then ask for proof its fitted with one, like i said you can check the serial number when you remove the NS driveshaft, the gear oil can be pored back in so wouldn't cost anything to check.

 

[scooby-93]

Find a B road come to a tight corner 2nd gear mid corner foot flat with traction control
Off, if it has a diff youl be able to tell! Itl pull you around the corner sounds daft but youl
Feel the diff grip

 

[Dan@SJM]

Pop the drive shaft out. If it looks like this:

You have a quaife

 

[RS Charlie]

I was under the impression that a Quaife ATB could not be tested via conventional ways making a visual inspection the only true way to see what it is.