i have a 97 4.ol automatic with warn manuel hubs and i locked the hubs on it today and put it in 4wd and the front tires were not doing anything and they wernt trying to turn i dont know what could be wrong with it any thoughts?

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97 ford ranger extended cab 4X4 4.0[sold]
1999 ford f150 extended cab 4.6 3 inch body lift 35 inch tall goodyear wranglers 4X4 straight pipe
1998 ford mustang V6 3.8l automatic
mainly stock except high performance headers, performance chip,flowmaster delta 40 series muffler