wide variation
wide difference
wide gap

But there are wide differences about what and how to change.

The answer to that might make a wide difference to any would-be trailer.

There are wide differences among countries in the average age at which women first marry or form a union.

There are wide differences between areas within the same region.

Across countries there are wide differences in the use of formal tracking systems.

But wide differences remain, with little clear indication of just how either side might move.

But the new ratings also show wide differences among vehicles of the same type.

At present, there is honest and wide difference of opinion about the best approaches.

At any one time there were wide differences of opinion about party chances however.

There was another wide difference in the scores of girls and boys.