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Hi everyone, I'm hoping someone can help me overcome a problem. I've bought a Top-Force Evo for my son and am having trouble inserting the rear ball differential into the chassis, it is such a tight fit that only MA19 turns (MA20 and the BG2 (Differential Ball Gear) don't). I've tried removing some washers to make the width of the ball differential shorter but no luck. We've run out of ideas- has anyone hit the same issue, or have an idea of anything I might be doing wrong? I've attached some pics of the instructions pages and our build. Thanks in advance for your help!

We solved it - the differential spur gear isn't symmetrical, so we switched it round and everything spins as expected. I'm not sure how to close this post off though!

Glad you were able to figure it out, those are great buggies!

Would love to see some pics if the car is finished. That's a lucky kid.