The gearbox has been out of the car and sitting on the bench for awhile and I see there is a noticeable leak at the rear seal. To replace the seal is it just a matter of removing the large Nut and pulling off the Flange to gain access? Leave in gear to remove the Nut? Is there a torque value for this nut? Anything else I should be aware of when doing this?:uncomfortableness: