linear motor in suspension analysis mates??

This is an assembly of double wishbone suspension. i would like to do a motion analysis on the assembly; but the mates wont work out. the concentric mates of the faces seem to be erroneous and so i opted for axis coincidence. but it locks the entire assembly in space and wont move( is there a collinear option??).  how to apply linear motor too. Kindly help me

SolidworksMotion Studies