its a 02 limited exploerer {my bosses} question is . he has 3 buttons 4 low 4 hi 4 auto.. 4 low 4hi should work like my 250sd....4 auto tho it was told it should like 2wd except when wheel slips happens ,,,? on dry hard payment hes got 4hi steerting problems wheel binding on left & right turns in 4 auto mode ford replace rear end at 35500 miles has 42000 now. question is should front end bind in 4 auto ??? ford says its normal