I need to replace the inner tie-rod ends and adjusting sleeves on the 80 sport coupe. It was originally a V-6 but now has a V-8. Here's my question; what is the difference between the two set-ups? When I look at replacements on RockAuto there are different part numbers for all of the front end components for a 6 versus an 8 cylinder. Would this be for stronger components to account for the added weight? The geometry has to be the same, correct? Just need some answers from the experts on here before I order the replacements, thanks.