Shortening the links raises the front but not on a 1:1.
From Revel:
Shortening the Link from the factory length will raise the vehicle. Each 5mm variance from stock will adjust
the vehicle approx ¾ - 1”.
RP-1 2013-2015 Ram 1500 Lifting Links RP-2 2013-2015 Ram 1500 Lowering Links RP-3 2016-2018 Ram 1500 Lifting Links RP-4 2016-2018 Ram 1500 Lowering Links RP-5 2014-2023+ Ram 2500 Rear Links RP-6 2019-2023+ Ram 1500 Lifting Links RP-7 2019-2023+ Ram 1
www.revelperformance.com
Adding a spacer and nothing else will not change height. You need to adjust the height using links. The spacer reduces the air pressure in the bags. Without the spacer and links only, I had a stiff ride in the front. Now I have a softer ride with less pressure in the bag. I can now adjust my links down to get a higher lift, if I wanted to. I have not changed my links yet, but my ride is closer to stock now.