these gears are gauranteed to never break. let ATP know your interested and they will begin production..... i just got off the phone with them and they said they want AT LEAST 10 people interested...... the news of these gears is not out there yet.... so if you are seriously interested in never having to worry about your transmission give them a call at 407-880-3171 ....... i know i will jump on them as soon as they're made..... any real racer should really look into these seriously...... they are about $200 per gear, we only really need to get 2-3-4 which are the gears most used, $550 for the tranny service which is to strengthen the gears and prolong the life or $600 for bullet proof gears that will NEVER break, your choice.....