I installed a set of Westin bars a few years ago. As far as I remember the instruction were decent. But now the bar on the passenger side rusted through at the connector. But recommendation is to try and put some spray on undercoating there to keep it rust free.
Westin warrantees the bars for life but I didnt hold on to my receipt (sucks to be me) so now no nerf bars for me
I loved them!
KEEP THE RECEIPT!!