Will the Cali Raised skids work with the TRD skid plate?
Yes and No. The transfer case, LCA, shock skid, and fuel tank skid will work with the TRD pro skid. The front and transmission skids will not.
Does the transfer case skid protect the catalytic converter from theft?
Not a guarantee, but it will make it more difficult for thieves to fit cutting tools in that area. But these were not designed for theft prevention. The transmission skid covers 50% of the catalytic converter.
Are they bolt-on, or do they require modification?
Yes, they are 100% bolt-on. You will have to remove some factory items, but they use all existing bolt holes. You can go back to stock at any time.
What types of material are the skid plates made from?
The front, transmission, transfer case and fuel skids are all made from either 3/16” thick steel, or 1/4” 5052 aluminum. 100% MADE IN USA, Fort Worth, Texas.