I did this and hated every minute of it.
Our Graco fit with the seat belt not with the base. I believe it is 80% has to be on the seat to be safe.
It did not forward face and honestly it is 90% of the reason I have the new truck (Crew cab this time)
We avoided it unless it was bad out and had to go somewhere with all three of us then we would do itb ut not preferred.
2016 CC LB 2.8L Duramax Diesel
The Original (Sold June 2016)
2007 4x4 Z71 3.7 I-5
Hunter Brush Guard
Access Lorado Rollup Tonneau
Window In-Channel Vents
DDM Tuning 55w 5000k HID
Fosgate Punch 10" Sub w. Custom Box.