yokoyoko wrote:http://www.motioncontrolproducts.com/pdfs/pmdc_2.pdf
If you are not sure perhaps ask the guys from motioncontrolproducts? As I know the mcp4 fits for the zyt-90 and the mcp-2 for the zyt-80.
Thanks, just emailed them.
Its the part of the motor that slots into the back of the gearbox looked to not match up unless they are changeable on the gearbox end. Will see what they suggest.