so ive jsut finished my buggatti chiron and i have had to already dissasemble it because when i roll it forward it rolls back and when it cracks and starts moving forward the engine doesnt work .I have a dillema because when i spin one back wheel to over one spins the opposite way so the differential is working. If you know the solutions this problem i will be greatful submitted by /u/florciu_ [link] [comments]
