Disclosed are femoral and tibial drill guides for use in posterior cruciate ligament replacement surgery. Each of the drill guides includes an arc shaped member and an elongate guide member, a stopper member, and an alignment arm member coupled thereto. Prior to preparing a tibial tunnel with a tibial drill guide and a femoral tunnel with a femoral drill guide, a rasp and/or cutter can be used to remove any remnants of the posterior cruciate ligament left prior to replacement thereof. The tibial drill guide includes a concave blocking surface and a viewing aperture on the alignment arm member to block the advancement and view the location of a guide pin exiting from a posterior portion of a tibia, respectively.