John Deere small square bailer hydraulic tong cylinder size?

I got a bracket to add the hydraulic tong swing to my John Deere 336 baler, and I was wondering if anybody knew what size cylinder it took? Or if somebody could take some photos and measurements of theirs? I have looked on John Deere parts but have not had no luck. Thanks.

John Deere small square bailer hydraulic tong cylinder size?