I have 1.36 gear ratio in Bravo 1 drives. Can someone explain to me if you change just the uppers or lowers or both to get to a 1.50 ratio.

uppers

What mcollinstn said unless they are XR's, then it is the lowers.

Thanks for the replies.

Does this mean that all bravo's use the same lower drive gears?

Not in an XR, I think that is correct in a standard Bravo 1

Notched_Baja - Do you still have the 23 hydromotive 4 blade props and are they available?
Thanks,
Dave

xr's change ratio in lower xz,x,std bravos change ratio in uppers if you need gears pm me i have some new and used take outs available