Look 6" below the bleeder screw near the top of the cylinder to see ID stampings (see stamping example in pics). If it reads "Pacoma" or "Made in Germany" this is the proper seal kit for your lift. Also you may find fj7664, fj783, FJ7311 or FJ7211.
SPOA7 SPOA9 SPOA10 Rotary Lift 2 Post Lift Lock Cable And Clamp OEM Part
Rotary Lift 2 post Cylinder Seal Kit / rebuild kit Pacoma cylinder FJ783-12mf
Rotary Lift 2 post Cylinder Seal Kit / rebuild kit Pacoma cylinder FJ7211
Lower Sheave/Pulley Kit For Rotary Lift 2-Post Lifts SPOA7 SPOA9 SPOA10
Rotary Lift 2 post Cylinder Seal Kit / rebuild kit 7-9k lbs FJ783-12TH texas hyd
Rotary Lift 2 Post SPOA7 SPOA9 SPOA10 Latch Shaft Spring Kit replaces FJ7382-3