[Tom Goldman]

You are correct on the load capacity. also, If your bracket holes are 5/8" be sure to use heims with a 5/8"ball ,dont use sleeves in a 3/4" rod end to reduce them . ....The 3/4"x5/8" ends have a higher capacity..........Yes the upper rod ends are stressed much harder than the bottom ones are,however for the few dollars difference ,I always use CM ends on all the bars. .....Also pay carefull attention to the 4-link bolts, something even some of the better suppliers of 4-link kits overlook or ignore. ........Make sure no part of the threads is in either the rod end or the brackets. .......NAS bolts with the proper underhead legnth are a little pricy,but money well spent.