Hi I am entertaining swapping a new post 1996 GM NV4500 into my 86 k30 454, single rear wheel, std cab, orig came with SM465, np205, 4:10 gears, 10.5" 14 bolt rear axle, factory hyd clutch. I will use the AA bell housing and brackets. What year transmission mount should be used and will my stock cross member work with minor mods? What mods? I will have the drive shafts modified at south bay driveline san jose.