A few weeks ago there was a post requesting the dimensions of the lift arm extensions and top link extension bracket for the Dearborn 14-15 or 16 sickle mower. My brother restored one of these mowers so I thought I would post the dimensionns as the question comes up once and a while. It seems these mowers are often sold without the new owners being aware that there are 4 important parts needed to be mounted on the tractor for the mower to operate properly and are often missing. My brother had to locate all of the brackets and manufacture one of the lift arm extensions. These mowers are somewhat disjointed so my brother made a wheeled support frame that it sets on which makes attaching it to the tractor much easier. I have a pdf of the mower manual if anyone desires a copy.