Most Q45's if not ALL have an R230 not an R200 so they have a 230mm ring gear and are considerably larger overall than an R200. The bolts on the back have a different spacing and the diff snout length is different as far as I know.

Basically it won't fit.

Any reason for wanting one? The stock R200 can handle sick power and is much lighter than an R230. You can get gears anywhere from I think 3.6 to like 4.88 too.


-Sean