A femoral hip implant kit (110) includes at least one distal implant and a plurality of femoral heads, each of the plurality of femoral heads having a diameter different from the diameter of the other of the plurality of femoral heads. The kit (110) includes a proximal trial housing (104) with a bore (138) within the housing (104), the bore (138) configured to receive a portion of the distal implant (102), a collet (154) located within the bore (138), the collet (154) including an outer wall portion (160) extending between a top surface portion (156) and a bottom surface portion (158), a collapsing member for engaging the portion of the distal implant (102) and for forcing the top surface portion (156) of the collet (154) toward the bottom surface portion (158) of the collet (154) along a first axis.
