The faults to date 1. all universal drive shaft universal joints are shot and now have been replaced. 2. rear engine mount shot and now replaced. 3. unusual vibration at all speeds, wheals balanced but vibration persists, suspecting Dual Mass Flywheel faulty, I intend to replace it with a single mass flywheel and clutch to match. 4.Tubo not spooling up, I have replaced all vacuum hoses and boost control solenoid the problem still there, I have tested the high Preasure boost sender and found it faulty. I've looked on Ebay for parts and found the price range for parts confusing can you please help me out with a reliable suplier of the above parts I need thanks. ps the D40 is a 4x4 with 250ks on the clock.