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Here are some fun facts about Corally Vs Arrma dogbone driveshafts that you may not already know.
- Corally dogbone ends are 7.6mm dia
- Arrma dogbone ends are 7.6mm dia at the inboard end, 9.6mm at the hub end
- Corally pins are in line with each other
- Arrma pins are 90° opposed to each other to prevent 'driveshaft phasing'
- Corally driveshaft length pin to pin is 134mm
- Arrma driveshaft length pin to pin is 143mm
It turns out that the rear hubs were going to require Arrma rear dogbones, even when using Corally arms at the rear. This is because the dogbones sit comparatively deeper in the hub compared to Corally dogbones.
The rear arms required carefully fettling to allow the hub to fit. I decided to Dremel the leading side of each lower arm, where the hub pivots. Material also needs to be removed to allow the larger bearings on the inboard sides to clear the arms, but this is easily achieved with a small rotary stone.
You can see here where I started relieving the arm, removing about 1mm of depth all the way along to the dimple, and adding a small radius at the end.
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The rear hubs fit with the Scorched logo facing forwards, as the camber link pick up points are offset to the front. This allows the camber link to run parallel with the arm. Corally camber link screws are too long, but fortunately, Scorched supply their own, along with washers and 4 shims.
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The front hubs really are the business. I'm so impressed with the quality of these parts.
The hexes are Treal 7075 T6, items suitable for Kraton 6S or Fireteam. The beauty of these, besides their high quality, is the flexibility. They can be used as extenders when used with spacers/shims. Another really nice touch are O-rings inside the closed, serrated wheel nuts.
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The overall look of this major upgrade is absolutely impeccable. Scorched Parts really have raised the bar in terms of finish, materials and design. They also include full instructions for the front hubs, along with some spare screws!
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All that remains now, following some very careful application of threadlock, is a quick tweak of camber and tracking.
Then we'll try some 0-60mph runs.
