I think in the DIY section someone has the Spacer Thicknesses and the part numbers for them posted in one of the threads.

If you cannot get the exact size you need one of our members bought some thicker than he needed and had them surface Ground at a Machine Shop.
They throw them on top of a Magnetic Cuck Plate and that holds them down and simply grind off the top.

__________________
84 300D, 82 Volvo 244Gl Diesel