Chainrings for Shimano FC-M760 crank worn out, need help Problem: I have Shimano XT FC-M760 cranks 22/32/44t on my MTB. BCD=104/64, 4 bolt. Need to replace all rings; I'm open to any solution other than changing to 2x/1x (2x10 not enough gear range, 1x11 too expensive).
Everywhere I look the big ring is discontinued or out of stock. Small/middle are hard to find but I eventually found a source.Tried to find replacement triple crank, very few options available, no XT. Tried ebay, prices are high and parts are worn. I tried to buy compatible Shimano rings (hone/saint), no luck.
specific questions:

Any links that show what rings (brand/model) fit those cranks? I know there may be a problem with the &quot;tab length&quot;.
Any sources that sell the big ring (42 or 44t)?

Update:
Bought Truvativ Trushift rings. Middle ring did not fit, big ring fit but I had to file down the pin (see longer comment below).
It's a very populous crank and generally speaking any aftermarket/replacement type chainrings will go on it. It tends to be true that the designated Shimano chainrings make the best replacements for their cranks in terms of performance, or at least avoid minor weirdness with spacing or spider fit, but it's rare for those issues to be insurmountable when fitting aftermarket replacement rings on to a mainstream crank like this.
There are some 104 rings where the rounded contour of the spider can be a mismatch. If memory serves you get into this from mounting Truvativ/SRAM rings on Shimano cranks, but I may have that in reverse. You knock the ring down slightly with a half round file and it's fine.
Some brands to look out for aftermarket replacements are Origin8, Dimension, Blackspire, Vuelta, and TA. The 2020 parts shortages have not hit generic replacement chainrings that hard and I see some of these are still readily available from distributors.