I thought I'd share a very easy modification I came up with to help get the 22 vehicles more adjustment for ride height. Especially with the 22 4.0, recent setups have a lot of the race team running cars around 1500-1510g, making lower ride heights close with fully stock parts. This modification is simple, quick and requires no additional parts.
Step 1 - Remove your rear spring cup. The material that will be removed is shown in the image below marked with a silver sharpie. Essentially, we are going to remove the lip that usually rests atop of the shock eyelet, which allows the spring cup to slider down a few more millimeters.
Step 2 - Remove the material from the spring cup, using a 6.2mm drill bit, either with a drill or a Dremel. You can also use a grinding bit.
Below is an image of a modified spring cup on the right, with a stock spring cup on the left.