RE: front one way
losi won't fit. Losi dog bones are smaller. You need an HPI one. Alot of the parts like diff gears Drive cups, dog bones and so on are the same size in the HPI cars. I know the diffs and gears are the same size, I just sold some diff gears for an HPI RS4 to a guy as an upgrade to his redcat diff gears. The HPI ones are much much better quality, thus the high price.