1970 71 72 Buick Skylark GS Manual Window Regulators -- left right front back-- good used GM. Also have window guides, window stops, etc. Real GM parts-- what are you missing? Front Regulators-- $100/pair Rear regulators- $80/pair or all 4: $150/set ros6872@hotmail.com or call 203-651-9990. I have lots of 70-72 parts--contact me with needs-- www.ros6872parts.com