The arms on your 60" are the same as I put on my 72". The biggest difference I can see is the brackets on the front and the rear of the 72" The gear box looks to be further back compared to mine. I am not sure if it would cause a pto shafts length issue. But you have the choice of the 60" shafts or 72" shaft. Nothing they cannot be overcome, but may be pricy to get a custom shaft. I am curious what you decide.