A transmission is provided having an input member, an output member, at least one planetary gear set, a plurality of transfer gears connected by a layshaft, a plurality of coupling members and a plurality of torque transmitting devices. The solution for forming a polishing slurry may include 1H-benzotriazole dissolved in an ionic surfactant such as a sodium alkyl sulfate solution, and perhaps a polyacrylic acid solution. The front panel includes retaining members formed along edges thereof, including at least two opposed edges, and each retaining member includes an extension portion extending rearward relative to a planar portion of the front panel and an inwardly projecting ridge formed on an inward surface of the extension portion.