Re: Convertible Top Switch
The "Fisher Body Service Manual" for 1972 GM Vehicles has a 59 page section covering the complete service and adjustment procedures for all GM convertible tops including model specific information. It covers everything from troubleshooting, maintenance, and lubrication, to complete top replacement procedures. This book is in reprint from many part suppliers and is well worth the cost. It also has several hundred pages of must have information for other parts of the car IE: Window adjustment, Doors, Sheet metal, Electrical, Etc.