21 With the drop offs welded in place it was time to test fit the new quarter-panel (PN 4021-601- 70R or L, $399.95 ea.). A good fitting panel can save you a boatload of labor. We were happy to find that the panel fit so good it was almost spooky. Dick has been doing bodywork for 36 years and he was sold on the Goodmark panels. As he told us: "I've installed a lot of quarter-panels, from just about every manufacturer, and this one fit better than any of them, even the GM units back in the '70s."