It's was a revmax converter and valve body ..some one on here recommended them and it seemed like they were knowledgable on the phone ...might have just been a bad apple ...they said they haven't had a triple disk converter go bad ever before ...they have been very attentive to the problem as far as calling to see what's going on with the problem and emailing me a prepaid shipping label to send the defective part back ...but now it's time to talk about refunds ,compensation for r&r labor and what they will do about sending my core back or paying me core money to pay for the core charge on my new converter ...I will keep every one posted on how they treat me...