From what I can tell red ‘n tacky is a synthetic lithium grease, I haven’t seen anything about mineral contents nor is it petroleum-based so I think it should be ok to use.
It looks good, but I really hate that a ton of brands don’t make explicitly clear
But also keep in mind that at least most white lithium ones I’ve used don’t have that good adhesion, as it will get thrown out of the gears as time goes by, might be worth checking after a while
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Yeah you make a good point - I have noticed it start to seep faster than the BN drives with RedNTacky too
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I probably better clean mine out I just chucked heavy duty bearing grease in…
What kind?
it was a tub of Lucas heavy duty bearing grease I had in the garage, ill have to check the tub but I think its similar to this:
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Yeah, hard to say. They don’t really explicitly list what’s in the ingredients. I grabbed some Red ‘n tacky today for mine and grabbed a tub of STP moly-EP grease, forgetting that moly stuff is no good for plastics
These fkn motor gear grub screws are going to be the death of me. I managed to get one set in one gear ok, but this second gear is very challenging. The threaded hole goes through half of a gear tooth so one side of it is wide open. Horrendous to try and thread one of the grub screws into without mashing it up. I managed to drop one on my garage floor (RIP) so I have 3 left. One of these is already looking not so great. Not optimistic about my chances 
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Is there some sort of bearing seat the gearing gets pressed into?
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Dear god I actually got it. I had a spare M4x20 screw kicking around here that I “practiced” with. It helped clean out the threads once I got it in and made it way easier to thread the grub screws in.
@Skyart the gear and bearing sits in a motor mount plate that gets bolted to the main drive.
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Ya this was horrible lol
I ended up just using green loctite on mine
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On the screws or motor shaft? Using a longer M4 screw to get the right angle etc was a big help for me.
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On the motor shaft, I left off the setscrews on mine
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Hope this video would help, use you thumb against to the grub screw, make sure it won’t move…then it all about align it straight.
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Yeah I definitely tried this. It worked on one of the screws on the first gear but the second gear had holes that were much more open on one side and the thumb didn’t really cut it. I had to use a utility knife and put the blade between the teeth next to the hole to give the screw a much more rigid surface to push against and eventually it worked. Not easy that’s for sure, but got them eventually.
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I think the long bolt idea is excellent. Gives a good visual representation of the axis of the thread
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Longer install video from Pavel: Very,very detailed tutorial on how to assemble geardrives. in this instance - newbee 4GS. - YouTube
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Exactly. It definitely helped me see the exact angle the screw was going in so I wasn’t trying to force it in a direction it shouldn’t go
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Good video. It didn’t look like his clamp brackets for his Matrix trucks had a flat side on them like mine do - maybe an earlier variation? The opening for the matrix trucks was a bit odd and hard to figure out at first but I eventually got it. I think mine ended up with the flat side facing the rear (as recommended in the video) and the slot/threaded hole on the bottom.
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