A DC9-10 IN CRUISE AT FL350 DIVERTS DUE TO THE R ENG THRUST LEVER STUCK AT 2 PT 02 EPR.

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R THRUST LEVER STUCK/FROZE AT 2.02 EPR AT CRUISE. JUST LEVELED OFF AT FL350; WAS BRINGING THE THRUST LEVERS FROM CLB EPR SETTING TO A CRUISE EPR SETTING OF 1.91 EPR WHEN I WAS UNABLE TO BRING THE R THRUST LEVER BACK TO 1.91 EPR. THE R STOPPED AT 2.02 EPR AND COULD NOT PULL IT BACK ANY FURTHER. WE COULD ADVANCE THE R THRUST LEVER (BUT COULD NOT REDUCE EPR PAST 2.02). WE DID NOT HAVE A CREW OPERATING MANUAL PROC TO ADDRESS A STUCK THRUST LEVER (ONLY ONE WE HAVE IS A PROC TO ADDRESS AN ENG NOT RESPONDING TO THRUST LEVER MOVEMENT). IN OUR CASE; WE COULD NOT MOVE THE THRUST LEVER. MAINT CTL SUGGESTED THAT WE DSND TO WARMER ALT. AS WE WERE DSNDING; THE FO SUGGESTED THAT WE TURN ON THE ENG AND AIRFOIL ANTI-ICE TO BLEED SOME PWR OFF THE R ENG. AT THAT TIME I DECIDED TO GIVE THE R ENG THRUST LEVER A QUICK SHOVE FORWARD TO ABOUT 2.15 EPR AND QUICKLY BROUGHT IT BACK. AT THAT TIME I WAS ABLE TO BRING THE R THRUST LEVER BACK TO IDLE. WE WERE ABLE TO USE THE R THRUST LEVER BACK TO MSP NORMALLY. I DO NOT KNOW IF IT WAS COINCIDENCE WHEN WE TURNED THE ENG ANTI-ICE ON OR WHAT; BUT AFTER WE LANDED WE TALKED TO THE MAINT FOLKS AT GREAT LENGTH. THEY THOUGHT SOMETHING COULD HAVE CAUSED THRUST LEVER CABLE TO BIND AND IT WORKED ITSELF FREE; BUT THE ACFT WAS GOING TO THE HANGAR.