i have (G)ayc on my UK evo and i dont like it, i notice you guys dont get the ayc with your evo's which in turn makes it stronger as ayc diff is prone to breaking, especially launching, i understand fitting an RS diff setup will change this however is it more cost effective to change to the usdm setup or is that the same as the RS setup?

any help and advice would be grealty appriciated

thanks in advance

 

Ah, see on this side of pond people usually break the transfer case since we don't have an AYC to break.

 

+1

my rear diff recently broke (the ring and pinion bearings apparently) and i want to buy a new diff.
i would like to know what is involved in the conversion and whats the benefits with regards to durability and handling.

thanks.

 

so are the usdm evo's the same as jdm evo's minus the ayc ecu? or is there actually another or different type of diff in place?

 

The USDM Evo's do not come with S-ayc. The entire rear diff is fully a mechanical viscous LSD with no electronics involved. You will need the entire differential housing along with the actual LSD.