In rebuilding the brakes, I took it for granted that the micram adjusters front and rear were the same. They’re not. And the parts catalog confirms it. Adjuster part numbers 21787 (front) and 23978 (rear). The attached picture shows how each is different. The one on the left is shorter, the one on the right longer. I know this is an obscure point, but can anyone tell me which is front and which is rear?