Outer Limits 4x4 Board

hey guys im looking at getting some reduction gears for my gq just wondering where the best place is too purchase from??

Not sure if rockhopper are still around now bbm is gone?, Otherwise marks adapters.

Got mine from marks as they were slightly cheaper. Fitting instructions were poor tho, ended up using factory manual to rebuild the case.

cheers joshy ive emailed marks adapters, looked for rockhopper gonna throw them an email aswell, the only other place ive really found is superior engineering...