The 160 mower came in a 3pt version and a belly version. The mower was very heavy and durable. Probably, the heaviest mower I have ever seen. The 650 had no trouble operating this 60in wide mower.
Also, the mower was raised and lowered via linkage that ran back to the 3pt and attached with some special brackets.
And, before anyone wonders, this was all John Deere equipment, not aftermarket.
Here's a pic of my old 160 mower after I repainted it. The wheels have been replaced with larger ones (by previous owner)