Low-Reverse Drum and Rear Band
Clean the drum in solvent but just wipe the drum thrust washer and rear band clean with lint free shop towels.Examine the double tabbed thrust washer for wear. If the washer is worn, or damaged, check the spot-face area of the drum for wear also.
Examine the band and friction material closely. Replace the band if bent, or distorted. Also replace the band if the friction material is burnt, cracked, or flaking away from the band. If the grooves in the band are no longer visible, the band lining is severely worn and should be replaced.
Check the band lever, adjusting screw, locknut, pivot pin, link and strut. Replace any component exhibiting wear, or damage.
Remove and replace the O-rings on the band pivot pin. Lubricate the new O-rings with transmission fluid after they are installed on the pinch