My understanding is that Newfields are "reconditioned" by CV Unlimited. Longfields are made of Moly and stretch over time and wear out faster as a result. Longfields are suggested for vehicles with manual hubs, and none daily drivers.
"Keep talking. I'll keep analyzing."
"Bad decisions make great stories."
"40's are only to be sold at estate sales." - Uncle Ben
'72 FJ-40 - 33's, F&R Disc Brake Conversation, rear ARB, sliders, Winch.
'96 FZJ-80 - Borla Exhaust, ARB w/ M8000, OME 3" lift, sliders, 305 BFG KM2, 4.88's and ARBs, and usually dog hair.