AT4-DMAX-HD

So I'm trying every avenue I can think of at this point because I never thought it was going to be this hard to find the seemingly nonexistent brown all weather floor mats with the removable carpet inserts. I've been to the dealership, tried various "factory direct" GM and Chevy websites, and even eBay with no luck. I can find the black ones but trying to find the brown ones are driving me insane. So if any of you have the light grey and brown interior with the matching floor mats and can post the part numbers for front and back mats you would bring back sanity to my life.

So, after replacing the fuel filter on my truck a couple times (and going through the priming process each time before starting it) I always hear a "fizzing" type of noise (presumably from the lift pump) while the trucks running. It'll keep making this noise until I take for a little drive. No check engine light or weird idle or throttle response. It runs just fine. I'm just not sure what to make of that noise. Any of you heard the strange noise as well after a fuel filter replacement?

Anybody having a hard time getting the grease to go into the Zerk fittings? I've tried a few different grease guns (all manual pumps) and for the life of me I can't get grease to go in one of the fittings, specifically the Pitman arm zerk. Grease just oozes out from the coupler. I don't think I'm doing anything wrong because I can get grease to go into the other fittings but this one is proving to be a butt kicker. With that said, even the other zerk fittings seem to be more difficult than my old Duramax to get grease in them. Curious if any of you have ran into this.