well ive already had a quote from SE Nissan in chelmsford, as they shotpeened the gearbox etc for the previous owner (he was a regular on this forum), and they have quoted me over £600 inc VAT and fitting, but i need to get the car on a ramp and have a good look underneath to see exactly whats going on under there, cos i dont wana shell out over £600 and still have the problem, id rather pay for a fault diagnosis and then look at the options available. if i did get a 2nd hand prop and bearings, would it be worth getting them strengthened just in case??