If you are restoring your tractor or about to put that three point hitch on, you need to look closely at the hoses that supply pressure to the rockshaft cylinder. Originally those hoses were 3/16 ID and had a pressure rating of 2000 PSI. After 30 years they may have a pressure capacity of 500 or are leaking. Also, they have likely swelled to less than 1/8" diameter ID. Many customers have waited till hose failure and called in a panic. Will this be you?
My hoses are constructed of double stainless steel braided 1/4" ID 100R16 hydraulic hose rated at over 5000 PSI. The fittings and custom tube are rated much higher. As with my other hoses, I use Premium Bite-To-Wire crimped hose ends. They cost a bit more than the cheap stuff others sell, but I think your tractor is worth it.
This is for both hoses. They are exact replacement for OEM #AM39458 (long) and #AM39255 (short).