BUICK Special & Skylark 6 CYL. & V8: 1964-67
Raise car and drain oil. Disconnect steering idler arm bracket-to-crossmember attaching bolts, then remove lower flywheel housing. Remove oil pan bolts and lower pan enough to remove oil pump pipe and screen-to-cylinder block bolts. Rotate crankshaft for maximum clearance of forward end of oil pan. Move front of pan to right and lower pan through opening between crossmember and steering intermediate shaft.