I do have the FAM but to be honest was completly lost when looking at sect 1 sheet 63.02 (part number 3707901) Things like o line and the one with a c and a line through it are like greek. But thanks Kevin for narrowing it down for me as to what to measure. So to understand you are taking the 49.52 - 13.77 to come up with the 35.75 inches which actually is pillar to pillar for the door opening top and bottom?