Originally Posted by iti20090

Apologies for thick in advance. The M05 (1500 bearing) and M03 (1150 bearing) ball diffs use substantially different bearing sizes where the cup shafts go through the chassis wall.

A number of the adverts show the M05 ball diff as for M05/M03/Mo6:
http://www.tqrcracing.com/shop/produ....asp?p_id=1846

How does one then fit the M05 cup shafts in to the M03 chassis? Does it imply removing the M05 cup shaft system altogether and replacing with the TA03 touring system or is there an intermediate bearing with OD small enough to fit the small M03 opening but also big enough to carry the M05 cup shafts?

The reason for also this is because I would like to fit the M05 oil filled diff in to the M03 but one assumes the same conundrum still applies?

Thanks and regards
Dave