96 gsr block, 98 ls crankshaft, ls eagle rods, dont have the original rods, or bearings from the crank. i know i have to look on the crank for the letter code. but i am not sure of the bearing color, i have A, B, A, B as the letters for the rod bearings. so which colors do i need, looked in the manual and it has a funny chart with four different colors, for each letter what else am i not looking at.