Overkill
Well-known member
After building nothing but monster truggies over the years I decided to build a monster buggy this time.
AllRacing 7075 aluminum gearboxes
These are machined very nicely and the 7075 material is awesome. Most other gearboxes for other brands use weaker 6061 material. They also use larger bearings which will increase durability. They do require some additional parts but it will be worth it in the end. They come with metal sealed bearings and sleeves, but I used rubber sealed bearings from Boca.
Rear bearings, 5x15x5
Front bearings, 5x13x4, 5x12x4
For the best mesh, I used 2-3 shims all on the left side of each gearbox.
You'll need shorter screws which I have marked below.
For MT/EB users, you'll need a shorter center rear driveshaft, because they increased the bearing width on the rear gearbox. With the increased bearing width you lose 2mm of driveshaft free play, which is a recipe for a bent driveshaft if left alone. This is a shorter Serpent driveshaft, part # 600945. I shaved off the ends making them flat and now it's at 28mm total length, which is perfect.
Arrma Typhon 5mm CVD driveshafts
These install just as easily as my ET/MT driveshaft mod.
Parts used:
Arrma Typhon CVD driveshaft, AR310455
Arrma Talion stub axle, AR310487
Arrma barrell & pin, AR310452
8x14x_ shims behind the wheel hex
(2) 8x16x5 bearings in the hub (same way you install universals)
Custom ring retainer for covering the pin (contact me if you need some)
As you can see they're much thicker.
3.6mm vs 5mm
Serpent +7mm wheel hexes, part # 600426
An extended wheel hex is required when using MX28 wheels/tires. Serpent and Arrma are some of the only few RC companies that use 2.5mm pins, everyone else uses 3mm.
Now we have clearance, so the wheel doesn't hit the hub.
Proline Badlands MX28 w/removable hex
5.05" height
2.70" width
These new wheels from Proline are really cool, you can replace damaged hexes or change the offset.
M2C center to rear chassis brace
M2C rear chassis brace
M2C center chassis brace
M2C lower rear tower brace
VRP 7075 center rod brace
Tekno 7075 center diff mount
AllRacing 7075 aluminum gearboxes
These are machined very nicely and the 7075 material is awesome. Most other gearboxes for other brands use weaker 6061 material. They also use larger bearings which will increase durability. They do require some additional parts but it will be worth it in the end. They come with metal sealed bearings and sleeves, but I used rubber sealed bearings from Boca.
Rear bearings, 5x15x5
Front bearings, 5x13x4, 5x12x4
For the best mesh, I used 2-3 shims all on the left side of each gearbox.
You'll need shorter screws which I have marked below.
For MT/EB users, you'll need a shorter center rear driveshaft, because they increased the bearing width on the rear gearbox. With the increased bearing width you lose 2mm of driveshaft free play, which is a recipe for a bent driveshaft if left alone. This is a shorter Serpent driveshaft, part # 600945. I shaved off the ends making them flat and now it's at 28mm total length, which is perfect.
Arrma Typhon 5mm CVD driveshafts
These install just as easily as my ET/MT driveshaft mod.
Parts used:
Arrma Typhon CVD driveshaft, AR310455
Arrma Talion stub axle, AR310487
Arrma barrell & pin, AR310452
8x14x_ shims behind the wheel hex
(2) 8x16x5 bearings in the hub (same way you install universals)
Custom ring retainer for covering the pin (contact me if you need some)
As you can see they're much thicker.
3.6mm vs 5mm
Serpent +7mm wheel hexes, part # 600426
An extended wheel hex is required when using MX28 wheels/tires. Serpent and Arrma are some of the only few RC companies that use 2.5mm pins, everyone else uses 3mm.
Now we have clearance, so the wheel doesn't hit the hub.
Proline Badlands MX28 w/removable hex
5.05" height
2.70" width
These new wheels from Proline are really cool, you can replace damaged hexes or change the offset.
M2C center to rear chassis brace
M2C rear chassis brace
M2C center chassis brace
M2C lower rear tower brace
VRP 7075 center rod brace
Tekno 7075 center diff mount
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