I purchased a transmission from a trans builder who i am not going to name cause i dont want to cause any trouble.. I am afraid that if i drive the car anymore i am going to be picking the driveshaft up from along the road... It upshifts and downshifts shifts extremely hard. Supposably already has the .500 boost valve, billet servo and monte ss governer ...I am debating on either trying to get my money back or just void my warranty and have a good operating transmission... After doing some searching it looks like the general concensus is ckperformance shift kit... Anybody in here ever run into a dilemma like this, If so what did you do and how did it work out? Thanks