Are you refering to the seal between the side-panel and the tub, or the seal between the side-panel and the roof?
First off, the seals on the underside of the side-panels are siliconed it (at least I silicone mine in, that's how they stay in place). Then the side-panels are bolted to the tub (do not leave the side panels attached to the roof). The top seals are installed in the side-panels (making sure to silicone up any open gaps). Lastly, the roof goes on. This is the easiest way to do it.
61 II 109" Pickup (Restomod, 350 small block, TR4050)
66 IIA 88" Station Wagon (sold)
66 IIA 109" Pickup (Restomod, 5MGE, R380)
67 IIA 109" NADA Wagon (sold)
88, 2.5TD 110 RHD non-hicap pickup
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