Upgrading just the upper control arms

[twilightTA]

New member here with a 1977 Trans Am LS swap that has a PTFB GT suspension (new springs, sway bars, Viking double adjustable shocks, solid subframe bushings and subframe connectors, fast steering kit). 17x9 snowflake wheels with 255/285 Continental ExtremeContact tires.

The control arms are the only items that are really stock at this point, though their bushings and ball joints were replaced about 10 years and 6000 miles ago).

It’s just a street car but I do enjoy carving corners but still want it to drive nicely on the street.



Are there any benefits to just replacing the upper arms? I like the current ride height and don’t want to risk messing with that hence I was thinking to avoid the lowers.