Few questions guys. the engine is 253, when I had it running it sounds healthy.No noises at all. The few issues I have are, the clutch Release bearing is playing up so box needs to come out, also there is a small leak rear main and washer on the oil pump.I am planning to pull box and engine out and do the clutch and freshen the engine with new gaskets, sump, rear main, rocker covers, I am confident in changing them myself etc but what worries me is the rear main seal.1.how hard is to replace it when the engine is out? 2. Can the box and engine come out to together on VB? Looks ok to me, I am also planning give the engine a simple spray once it is out and change the engine mounts.