Hello all. I'll be straight out and say i'm a Holden guy BUT i've bought a EL falcon for a too and work car so bare with me.. i know nothing about Ford.

The car itself is just a everyday GLI falcon but has the running gear out of a friends XR6 ( 5speed ).
I'm getting the diff off him which is a LSD with 3.45 diff gears, im wondering if it would be worth getting 4.11's? as a friend is selling a set out of a VN skid car he has for $200.