30JL18

Question: I ordered the liners for a 2020 standard cab 2500HD. The part number shown on the accessories website is 84496084. I received part number 84496085. What is the difference? The description on the instruction notification says, "Heavy Duty Trucks Rear Wheel Liners." The instruction notification also says to request the service instructions sheet from the dealer. They are closed now. I have used the search engine to find the instructions online without luck. If someone has access to the appropriate accessories manual I'd really like to install them before heading out to work tomorrow. If not, no worries, I'll just do it after work.