If the box is only going to cost you $500, then you should definately go down this path. But to answer your question, yes the Light Weight Shock Proof will prolong its life. In mine it relieved the notchiness and allowed me to quick shift. Probably the best $120 I've spent on the car results wise. I didn't think it would work, but it did. This was after a gb oil change which had fresh Motul put in. Red Line is expensive, but well worth it in my case.