I just bought and installed a belltech 2/3-4 setup from tony. I’ve seen mixed posts about needing the end links. Some people say it’s needed, however tony said no. I setup my Escalade esv 2/4 and have only settled out to 1/2.5. I have a feeling the air sensors are limiting my drop for sure.
Wheels are 26” Denali reps with 295/30/26.
Though a bit off topic and unrelated to rear sway bar end links...
295/30/26 Is a 33” tall tire. Which is close a whole 1” larger diameter than stock tires. If you are measuring your drop from ground to fender lip that extra 1” in wheel diameter would explain why you’re only measuring 1/2.5” out of your 2/3-4 drop.
In regards to the sensor rods;
Auto ride sensor rod links can be swapped to 10-24 threaded machine screws. At an overall length of 3-11/16" it levels out with about a 1/2" rake. For every 1/8" change in sensor rod length changes ride height by 3/4". It doesn’t take much adjustment in the sensor rod lengths to adjust the ride height.