I went to TTP today and saw a set of 97 Taco 4x2 Rear springs that measured 51" long with 22.5" from front of spring to the center pin. They had 2 main leafs with 1 over load. I know some people run the 51" year 89 to 95 rear springs up front but is there anything different about these 97 Taco 4x2 springs which measure at 51" also? I plan on mixing some YJ's in with this pack and want to make sure I am not missing something here and want to make sure the 4x2 pack is ok to use up front. The leafs look really thin.