Before asking my question, I wanted to mention that I greatly appreciate those members who have worked extensively on older Buicks and share their insights, tips and experiences. It is really helpful to have this information "preserved" in this forum...thank you, guys!

Now, here's a question about my '40 Century:

My Buick Master Parts Books shows two gas tanks for the 1940 Buick Century (and other 1940 models, as well). Apparently, there was a 17-gallon tank on early production cars and a 20 gallon tank on later 1940 cars.

The frame number on my Century indicates it is an early car with 17-gallon tank. I am preparing to order a reproduction gas tank for it. I assume the repro is the 20-gallon style, as it fits later cars as well.

The question is, will a 20-gallon tank fit my "early" car and, if so, will it require different straps?

Dear Allcars:
Take a look at "gasoline tank supports" group 3.022. It would seem to indicate that the support changes at the same frame numbers as the tank does. This would lead one to believe they're a little longer. The price is also higher (30 cents VS 25 cents) in my 1941 parts book. I doubt that you'll get the same price!
Regards, Dave Corbin