6210 is stock with 10 rollers. 1210 comes stock in some t-cases and has 14 smaller rollers. Some online company's sell the 1210 or something like it, for twice as much stating that it can handle more load. The 1210 is also hard to find, today I went to buy some from a nationwide transmission parts distributor and they tell me they don't sell them because they are known to fail under high loads? Anybody had a experience with either failing? And quad4x4 sells a 15 roller bearing for $50 wow!
Top 6210
Bottom 1210
Top 6210
Bottom 1210
