if it's the brake lever, you should beable to pull it out and free it up in a vise. there is a pin the holds the l shaped lever in the housing that bolts to the drum backing plate. seperate the lever and small housing and clean and pack that sucker with anti seize,. they still used that design up untill the new tundras. I get them all the time at work.

1986 xtra-cab 22re
stock everything
1991 bed