Congratulations, you guys have done well. It is rare to find a pension these days, let alone one that pays the amount yours does.
So, you cannot switch to your wife's benefits, but you can file for spousal benefits. This way you can get spousal benefits until you turn 70 and can maximize your own benefits. You will want to run this strategy by a financial planner or tax professional to get the specifics right and make sure it is the best strategy to maximize your social security benefit. There are great tools that can help you get started. Again, though, please consult someone to make sure things are done in the right order.
Here is a link to the IRS pays discussing spousal benefits:
This is a tool that will enable you to put in your specifics and let you know some viable strategies.
I hope this helps. If you have any questions please feel free to ask.