coilovers for dc2/dc4 should be straight fit to your eg(as long as its not an eg6 as they have dc2r rear lca's stock)

dor dc2r coilovers to fit you'll need the rear lca's off a dc2r or eg6

all eg's(bar eg6) and dc2/4 use a fork style lca at the rear
while the eg6 and dc2r use eye-style joints