I had nothing but trouble installing. There was mis-alignment between the latch and the square rod extending from the door handle. Followed their directions to a T. Ended up modifying their latch to work on my truck. No answers why.....
Also, there is no lock ability with the set I bought. On a good note they work well after I spent two days modifying for proper operation.
STAY STOCK STAY HAPPPY! And 300 clams richer. My two cents--


1947 GMC Truck 5 window, Long Bed
2008 Corvette Roadster
2008 Harley Davidson FXDL
2011 F150 Ecoboost 4X4
2015 Subaru Outback AWD
"only the strong survive"