[suicideneil]

FLM combo bulks use standard sise maxx diffs, they just do away with the diffcase and combine it into the bulkheads.

1/8 scale diffs go into the UE Ultralite diff cases- they are the only dif case on the planet that takes 1/8 diffs- they can take the 6 or 8 spider UE diffs or the Hot bodies (HB) 1/8 diffs which are the same size & use the same bearings which are large than normal maxx ones.

The FLM hybrid bulks take 1/8 scale diffs, either the UE 6 or 8 spider diffs or the HB 1/8 scale buggy/truggy diffs. Someone is testing to see if different 1/8 scale diffs will also fit, since they use the same design & bearings in theory, but that is still to be confirmed.

If you are interested, there are a few sets of UE 6 spider Ultralite diffs/cases for sale on feebay at the moment, but prices will reach crazy levels by the end of the auction.....