Here are some pictures of the adapter These are all fairly rough measurements. The adapter attaches to the case at one of the upper holes for the countershaft cover and two holes on the lower countershaft cover. In order to keep from bending over the ear on the adapter you need to use spacers approx. 1/2" thick between it and the transmission case along with bolts that are 1/2" to 3/4" longer than the bolts for the countershaft cover. The adapter measures 19" overall width. The piece of channel that attaches to the jack is 16 13/16" in width. The longer side of the adapter at the mounting ear is 9 3/8", the channel on this side is 7". The shorter side of the adapter at the upper mounting ear is 7", the channel on this side is 4 1/4". The slotted holes are 1 1/2" wide and approx. 7/16" diameter. The hole on the longer side is centered at 3/4" from the top of the adapter and 2 1/4" from the edge. The upper hole on the short side is centered at 1 1/8" from the edge and 1" from the top. The clover leaf hole is centered in the horizontal at 2 3/4" from the bottom and 2 5/8 from the edge. The mounting provision for attaching to the jack is the same as the adapter for the Mack transmission