I know this has been covered many times be4 but nothing similar to my problem, I have a 89 SC 5-speed all stock but the solid motor/trans mounts, now when i get in the car and start it she shakes and makes a rattling noise similar to metal on metal the stick shakes like a wh*#! And well so does the car, when the idle drops it smooths out but if reving in neutral or in gear it vibrates till the rpms drop (naturally) back down, now what puzzles me is that its happening out of gear, eliminating a drive shaft issue, i had one mechanic mention the throw out bearing and pilot bearing? But how... The trannys not engaged? The harmonic balancer seems to be running true so iv eliminated that? Could a tune-up be needed? It had a no start issue that was tracked.down to a bad maf/dis/cranksensor all wer replaced tho and motor smoothed out but that being said it was ran off 5cyl for a bit cause number 3cyl wasnt firing due to bad DIS. Any input would be appreciated! Im stumped boys n girls!