Originally Posted by ianyboy
please explain what is #1 t-bar
T-bars came in different stiffnesses from the factory, just like rear springs. The highest load ratting is #1 bars with k springs. Information can be found on the door vin tag for what springs you have. For example my truck was 11kk. My old 2001 was 11cc because it did not have the tow package springs.
For t bars I think rating is 1>B>F