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I'm getting ready to do the same job and have read all of the related threads. I'm not sure I understand the bolt pattern of that 40 but the reason I don't want to drill the Red holes (all the way down) is you won't have room for washers inside the splash well and drilling the green holes (all the way up) doesn't leave options if it's too high. I'm planning to drill the yellow holes (middle) and mount 2 holes up. I'll let you know how it goes.