It is imperitive that the engine and trans are in the car.The car should be fully weighted before you install them. It is also important for the car to be level when you weld them in.Ramps on level ground is ok,but the best would be on a drive on lift.
Will you elaborate on why the eng./trans. need to be in the car? Most of these guys have done theirs with the engine out and had no problems. I just want the best of both ends of this debate. Thanks.
