Hey guys. I've searched around the forum and YouTube and I can't find where someone has upgraded their Granite 3S Brushed spur gear to a metal one? My sos keeps shredding his spur gear and I would love to upgrade to metal. Is there one available?
Granite Metal Spur Gear for Granite 3S Brushed?
- Thread starter longlimb
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.
links, including eBay, Amazon, and others.
adambc82
Active Member
- Messages
- 146
- Reaction score
- 104
Are you setting your gear mesh properly? Could also upgrade to the BLX gear box. I have been running the same spur gear in my brushless upgraded mega and w/ the mega slipper with no issues. I am using the BLX gear box.
https://www.ebay.com/itm/143060168677
https://www.ebay.com/itm/143060168677
- Messages
- 2,503
- Reaction score
- 2,699
- Location
- Tel Aviv, Israel
- Arrma RC's
- Granite
- Senton 3s
- Talion
- Typhon 6s
- Typhon 3s
- Voltage
One option you can do is upgrade to the (brushless) 32p spur and pinion. the bigger teeth will be harder to strip
- Thread starter
- #4
Yeah apparently I suck at setting the mesh! haha. I've gone through 3 spur gears!
But I can use this gear box on my Granite? What about the slipper assembly? Can I switch that up?
- Messages
- 1,322
- Reaction score
- 2,249
- Arrma RC's
- Granite
- Kraton 6s
- Vorteks
Is it a brushed Mega or a brushless 3S? Brushed 3S doesn't exist.
If it's a brushed Mega, it sounds like a mesh setting issue or stuff getting in the power module destroying the gear.
If it's a 3S, there is a metal spur gear available from Arrma.
If it's a brushed Mega, it sounds like a mesh setting issue or stuff getting in the power module destroying the gear.
If it's a 3S, there is a metal spur gear available from Arrma.
- Messages
- 6,170
- Reaction score
- 9,024
- Location
- Illinois
- Arrma RC's
- Fireteam
- Infraction
- Limitless
- Kraton EXB
- Talion
- Typhon 6s
- Typhon TLR
That must mean you still have a 3mm motor shaft. Which brushless system did you buy? And would you recommend it?
- Thread starter
- #7
Sorry yes its a MEGA brushed. Which metal gear works because I thought it was this one and it doesn't look right. The center is too large. How would this work?
- Messages
- 1,322
- Reaction score
- 2,249
- Arrma RC's
- Granite
- Kraton 6s
- Vorteks
This one will not work. It is the metal upgrade for the 3S slipper and the gear profile is different than on the Mega.
I am not aware of any metal upgrade for the mega.
I am not aware of any metal upgrade for the mega.
- Thread starter
- #9
Oh gotcha. Thank you for the help. Will the BLX gearbox work on my MEGA that Yonic mentioned?
- Messages
- 1,322
- Reaction score
- 2,249
- Arrma RC's
- Granite
- Kraton 6s
- Vorteks
Yes, the BLX slipper will work, but you will need to find a new 0.8mod pinion having the right hole diameter for the brushed motor shaft. I am not sure if this can be found.
Do you have a V3 Granite? If so, you could consider making the whole brushless conversion while you're at it. You'll probably do it anyway eventually. You will need the BLX slipper assembly + 0.8mod pinion + ESC + motor + batteries. The V3 already has the BLX- compatible diffs.
- Messages
- 2,503
- Reaction score
- 2,699
- Location
- Tel Aviv, Israel
- Arrma RC's
- Granite
- Senton 3s
- Talion
- Typhon 6s
- Typhon 3s
- Voltage
amain sells mod 0.8 pinion that comes with a sleeve to make them compatible with brushed shafts.
https://www.amainhobbies.com/protek...mod-.8-5mm-bore-11t-ptk-8054/p735082?v=704103
https://www.amainhobbies.com/protek...mod-.8-5mm-bore-11t-ptk-8054/p735082?v=704103
- Thread starter
- #12
Very cool. Thanks!
adambc82
Active Member
- Messages
- 146
- Reaction score
- 104
I have this system in mine and recommend it if you don't want to spend $50-60 more for the BLX spur assembly.
https://www.horizonhobby.com/produc...r-combo-3000kv-3.5mm-bullet-ec3/ONXS0500.html
Its pretty much a drop in fit. Can upgrade to a 17T pinion for a few more bucks that will speed it up too.
https://www.horizonhobby.com/product/pinion-gear-17t-48dp-mega-4x4/ARAC7784.html
Hope this helps. This system works best on 2s also. Had trouble with the ESC and Nimh packs.
adambc82
Active Member
- Messages
- 146
- Reaction score
- 104
Missed this one. Yes you can put the mega slipper straight into the BLX gear box either an upgrade to brushless or the stock mega motor.
One other thing is to out some loctite on the motor screws to help keep it in place over time. since I upgraded mine last fall I've only done a quick check on it a few times and it's still running the stock gear after countless packs through it.
GraniteFox
Very Active Member
- Messages
- 1,314
- Reaction score
- 1,923
- Location
- Delaware
- Arrma RC's
- BigRock
- Infraction
- Kraton EXB
- Mojave 4s
- Outcast 4s
- Outcast EXB
Hot racing makes one for the mega. https://hot-racing.com/?partnumber=SATF891E;c=1259
- Messages
- 6,170
- Reaction score
- 9,024
- Location
- Illinois
- Arrma RC's
- Fireteam
- Infraction
- Limitless
- Kraton EXB
- Talion
- Typhon 6s
- Typhon TLR
Thanks. You hit the nail on the head - I hope to avoid buying a new assembly. You mentioned 2S. Have you also run it on 3S? If so, how’d it go?
adambc82
Active Member
- Messages
- 146
- Reaction score
- 104
The mega gear won't handle 3s. 2s with the 17t pinion will get it moving pretty quick.
Also, check othe the video here if you aren't setting the slipper right after you're switching out the gears.
https://www.arrmaforum.com/threads/mega-4x4-how-to-videos.5498/
Last edited:
- Messages
- 6,170
- Reaction score
- 9,024
- Location
- Illinois
- Arrma RC's
- Fireteam
- Infraction
- Limitless
- Kraton EXB
- Talion
- Typhon 6s
- Typhon TLR
Appreciate it. Last question: did you see any battery/efficiency improvement transitioning from brushed to onyx?
adambc82
Active Member
- Messages
- 146
- Reaction score
- 104
Yes, you will get longer run time with the brushless system. Runs at least 20 mins, longer of you turn down the power to 50 or 75%. My 4 year old drives it the most so its usually turned down but when I drive it at 100% it's just as fun as my BLX.
