Main bearing set color code

[ruff rider]

Hi,
I'm overhauling a df70 (build 2000). The main bearings on the cranckshaft come in different color codes. How to know which one to use?
Greetz

[redlowrey]

The colour code is for the bearing thickness, there should be letters stamped on the block and on the front web of the crank. If you are not a mechanic and cant read a micrometer be careful, because you might end up in a world of hurt.