I was designing a back plate that would be compatible with a XTM diff. Ran into a problem. I don't know how an extened output gear could be gotten. If it were custom made, it would be expensive. But anyways, here is a picture of how far I got:
SH Z-Car, Custom Crawler, 8s Savage,
12s XTM XLB 1/7 buggy,
4wd 4-link rear/IFS Pro4 truck,
Custom Hyper 10 Short Course,
Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz