Depends which coil over kit you buy... if you go coil over the best kit to get is the one that connects to the lower control arm... So no you wouldn't need these... but honestly if you are on a budget and staying stock type suspension roller perches are the best bang for your buck.
i was looking at the rrs coil stut kit http://www.gatewayperformancesuspension.com/gps_1010_street_avenger.aspx
The RRS front strut suspension kit is a good kit. It is not inexpensive, though. For the same money as you would lay out for this kit, you could install a TCP coil-over suspension ($2379)and still have $800 to put towards new front brakes. From a handling perspective, the double a-arm suspension in the Maverick is a superior design to the strut type of suspension. You do not get negative camber gain when running struts. Stut suspensions were mostly a packaging and price compromise.
