Just installed RA Low pro bushes into my MK H92 box and ive shimmed up some shs 13:1 gears.
Now it’s sweet, I’m pretty happy with how the gears are shimmed up. Roughly 0.1mm play with each gear and they are happy to spin but if you spin them too fast they or one of them atleast, makes a high pitch squeal?
It’s quite strange almost like the gear is trying to spin so fast that its vibrating in the bush?
Ive tried adding an each shim to each gear but it only makes it too tight or doesnt really take the noise away?
Can’t attach a video for some reason sorry.
I think it might be the spur gear.
No grease on the gears at the moment and wont be able to put anything on them until tonight unfortunately.
Let me know your theories?