I have an L2550 which I recently bought. It has 1150 hrs and from the maintenance records recently had a new clutch installed. I noticed a fairly bad oil leak coming from the trans area under the cover in front of the seat. I removed the cover and it seems that the oil is coming from the area where the trans bolts to the rear axle housing. My question is would this only be from a poorly sealed gasket or do the bolts extend into case and need some sort of sealant on them.