To switch from the HL900 Loader to the SWB54 Six-Way Blade, with take approx. 4 hours to make the switch. I would say most customers purchase our SH44 Speed Hitch, and then buy a speed bucket or hydro angling blade. Going that route will keep the cost down and only take a few minutes to switch attachments. That being said, the SWB54 Six-Way Blade is a much stronger blade than the angling blade, so if you are looking for a “true dozer” set-up, then this will be the blade to purchase. For a more in depth description of the switch out procedure, please give us a call and ask to speak with one of our techs.