to know if its 100% a 2 way

[dil]

Seen a diff advertised on dd as a cusco 2 way.

its out of the car so can't be tested so I'm just wondering is there any absolute sure way of knowing if it is a 2 way or just 1 way???

I thought if the cups turn in the same direction it is a 2 way but is this the case??

cheers

[Newsome]

Take off the back casing and you shouldnt see any holes in the diff like a standard 1. Should be just solid and most of them would have a make on it aswel.

[tweek]

Take off the back casing and you shouldnt see any holes in the diff like a standard 1. Should be just solid and most of them would have a make on it aswel.

Two ways have holes in the diff the same as vicous diffs but they dont have spider gears like the viscous hope this helps you a bit

[raytsang]

if you open it up you should see this thru the hole on the diff.

2way


1.5way


1 way


taken from
http://www.ppi-ats.com/LSD/LSD_basics.html

[dil]

cheers guys helpful info there.

the guy refuses to open the back casing for a look so he's just full of shit, probably welded

[tweek]

Best pics I could find of a viscous diff showing the spider gears