Good luck with that. I would say find some longer ones and cut them down to size. What are you trying to accomplish by using the Losi diffs? Is there an advantage there? Is it supposed to give it more torque or something?
The losi diffs are just built to handle to power. I have coverted it to electric. I'm running 1/8 momba monster just 3s but stock diifs dont last very long
The drive cup for trans has to have the pins for the brake and I can't find one like that. It's 6 mm On the trans output shaft And 8 mm on the pinion. That's the shafts Diameter.Are you Talking about measuring for a dog bone.
Are you a member of centralemaxx? I know others on there have done this conversion and would know more about it than I... But I would say ditch the 3.3 pin style brake and go with the old style brake hex and pad
You need the FOC for the 4909 Tmax, p/n 5195 FOC, but it uses a 5mm cup.
You can also cut your FOC shaft to the Length you need but you need a 2 grub screw cup to affix to the shaft which are getting harder to come by.