If the core44 would have come with a steel or nodular iron cover I would have went with it but it doesn't and the cover is a weird shape so you cant just replace it with any cover. I ended up getting a TF44 though I'm sure I would have been happy with a PR44 too. Running 5.38's and very happy I went that deep with the 3.8 auto.
'11 JKUR, 3" Full-Traction w/5100's, 37x17 Trail Graps on Slabs, 10 Fact Axles, Adams front DS, TF44 front, PSC Hydro Assist. Home made sliders, bumpers, tire carrier. Warn XD9000i w/Smitty Synth line.