hi there the front diff on the escort was making noises so decided to see what would happen so i launched it and just as i thought bang!!

i was expecting something to go as iam running a harvie gibs 431 bhp engine on standard cosworth diffs and gearbox and harvie said they would need upgraded

iam planing on doing this as they brake
so it looks like i need a front diff

my question is what options have i got
what diff will i go for that will handle the power

thanks
ian

ps. if anyone has a suitable diff for sale let me know