I like to think people are reading this and thinking why the hells this getting updated lol. When I spotted this thread I was really happy as nothing now exists anywhere else, so maybe one day someone else will come along like me and find this whole topic really useful like I have
Been messing with my spare/maybe drift 7.6 tonight. I found some aluminium pulleys made by 3racing awhile back so purchased a 17t one to see how'd it fit.
It works great only issue being needing a little spacer between it and the bearing as the original pulley is slightly deaper from the grub screw which ive shown below, the alloy one is flat. So a 4mm id x probably less than a mm should do it. Ill order some plus 3 more pulleys to do my 7.7 now.