Using the top rack adjuster kit supplied by Appliance Parts Pros, I found this was not an exact copy of my original part, no instructions included, no worries here. The replacement appeared to be a more durable part, I proceeded to unpack the parts kit. Lay out all like parts in an order, count each and separate into two equal groups for left and right. Now to the top rack, removed the old parts from one side only. The two groups of new parts are identical and symmetrical so that they can fit either side with no difference. When assembling the first side, I could test fit the first group to see which part should fit where. Then, using the existing original side roller assembly for a guide, I could the fit new side in the correct place and order. Fitting the second side roller assembly is just a repeat of the first. This design is a real time saver and makes the job really easy.