Are you sure the problem is, what you think it is? Have you checked the gearbox oil level, do you know how to, it could be that. Would be cheaper in the long run to get it checked by a auto gearbox specialist rather than changing parts that don't need changing, and stiil have the same problem. Lots of people who use this site have changed parts on their vehicle, just guessing at what the problem was and spending loads of money in the process, which, didn't cure the problem so they then ask for advice.
Dave
March 2012