Pulleys are dirty with noticeable tooth wear but remain intact and spinning. Hardware and springs show light surface corrosion. Cage pivots and spring tension feel normal by hand; shifting not tested on a bike.
I believe these were available in the mid 90's. Deore XT - M737 3x8 left and right brake/shifter combo. Fully rebuilt. Internals were cleaned of old grease by sonic cleaner. Regreased and put together.
Achieve smooth shifting and maximum durability. -The front drive makes the chain stable on the center line of the cross chain, and the rear drive is noiseless and the drive is stable. -Made of high-quality steel, the service life is longer than traditional chains.