Here is what the rear 'axle' looks like on a fit. Not sure if I could put a RWD axle in it the back, do you know where I might get a compatible RWD axle that would fit or fit with a few new holes?
https://image-cdn.beforward.jp/autop...379_425b0a.jpg
It does not look like it has enough room for a RWD axle:
https://image-cdn.beforward.jp/autop...024_892f0a.jpg