8.5 rearend with 5x4.75 pattern?

what 8.5 rearends came with my factory 84 bolt pattern excluding the 9c1 and wagon which i think were all 5.5 inch bolt patterns? should i just dig around the internet for a civi w/ the 8.5? also, when i do get it what are the best possible ways to upgrade it to withstand about 450-470 rwhp? stock 28 spline axles are strong enough i hope.

Just get the 8.5" with the 5-on-5 and get new rims. Get one 1989 or newer and you get 30-spline axles. Get a '94-'96 9C1 and have rear disk brakes.

thanks for the :2cents: