I would be happy to help you. Both the Curt item # C12058 and the Draw-Tite item # 36287 trailer hitches are confirmed to fit your 2008 Cadillac DTS. The hitches are identical in everyway except for the name stamped on them. They have the same capacity, installation method, and dimensions. I recommend going with whichever one is the least expensive.
The Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item # 118535 you were looking at is confirmed to fit your... view full answer...
Hey Dan, it looks like the 2009 Cadillac DTS has a towing capacity of 1000 lbs so as long as the trailer weighs less than that it could tow a trailer. We have a trailer hitch that fits your vehicle with the Curt # C12058 and then for trailer wiring you'd need the part # 118535 as well. view full answer...