447/448 Specs
Made my day Cocre! Looks to me like a BIG difference in digging force between the two.....
for what it's worth.. I have the 448 on my 2007 3320 and have probably tackled more than I should have.. but have had no issues or complaints so far. I am impressed with it's capabilities and power and it is easy to mount/dismount as you just need to remove 2 large pins and use the 3pt hitch bars to raise/lower it. If you have any questions about capabilities I can give you examples as to what I have done with it.. just shoot me a message. Either way.. 447/448 they are definitely worth every penny as they "complete" an already extremely versatile piece of equipment.
With my following comments, I'm not suggesting you shouldn't follow up on a 448 / 485. As previously mentioned the 448 / 485 will dog a foot deeper or provide longer reach and has more powerful specs.
I suspect, but cannot say for sure since I only have experience with a 447 - depending on the direction the BH is trying to operate the 447 has enough power to pull the 3320 around - so with some operations I'm not sure the extra strength of the 448/485 could be fully utilized.
Look here:Currently I can't even find the specs on the 300CX loader on JD's site.
John Deere ManualsDo they have the manuals online? Might be able to find a 447/448 manual with specs.
447/448 Specs