'60-'63 Chevy truck clusters will interchange, but the gauge cluster and warning light cluster, require a slightly different underdash wiring harness. 4-5-6 Chevy truck clusters will interchange, but the gauge cluster and warning light cluster, require a slightly different underdash wiring harness. Although similar, the GMC clusters, of the same years, are different, from the Chevy clusters.
The lenses for the Chevy gauge clusters & warning light clusters are available from many of the aftermarket truck parts suppliers, like:
www.lmctruck.comwww.classicparts.comwww.bowtiebits.comwww.truckandcarshop.com