With rear cambers arms on the EP3 / DC5, you got to make sure that they are steel construction.
For some odd reason, the EP3 / DC5 do not like alloy rear arms, seen a few snap (one was during adjustment on the ram).
The only 3 steel arms I know are the SPC and the CyberSpeeds arms, not sure if there are any other brand.
But make sure they are steel and stay away from Alloy arms for EP3 / DC5.
EG/EK/DC2 are fine with Alloy, they don't exhibit the same issue as the EP3 / DC5.