mrbjk1
+1y
In 92 is when they changed the bodys on the suburban. So if you have a 91 or lower then yes they make a 3" spindle. If its a 92 or newer then its a 2" spindle. Either way the truck spindles will work. On the 91 and lowers though the there are 2 different spindles one for the 1" thick rotors and one for the 1 1/4" thick rotors. As for the rear, all suburbans are different from the trucks.