here are a few i found on ebay. But they are not cheap

eBay Motors: 2002 Escalade Inst. cluster( fits Silverado,Sierra,etc) (item 170223288087 end time Jun-03-08 13:10:44 PDT)

eBay Motors: 00 - 02 Cadillac Escalade Instrument Cluster Gauge (item 180248777281 end time Jun-07-08 00:10:42 PDT)

eBay Motors: 2000 2001 2002 CADILLAC ESCALADE SPEEDO CLUSTER (item 170223415389 end time Jun-03-08 20:24:38 PDT)

eBay Motors: 99-01 02 GMC DENALI SPEEDOMETER CLUSTER FITS SILVERADO (item 280190736988 end time Jun-06-08 17:39:18 PDT)