I dropped and lost the washer that goes under the nut that holds the shifter assembly up to the shifter bracket rubber part awhile back. I also was wanting a brand new nut/bolt that connects the shifter to the shifting fork of the tranny. I found the diagram of the whole shifter assembly on Courtesy`s website,but has no part #s for these. Do I need specific part #s to get these from my local Nissan dealer,or will they actually know the exact nuts/bolt/washer I need?