Bonneville fuel tank

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Can anyone tell me if a 69-70 Buick Wildcat fuel tank will fit a 70 Bonneville? Or if some other full size sister will work?

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[Ben M.]

It will probably fit and function just fine, as would the rest of the '69-70 big car lines. The size and mounting straps will likely differ and require getting creative. As an example the '67-68 Impala tanks fit the Bonneville\Catalina line, but they are not the same size tanks and don't mount identically - though they can be made to work if functionality is the need. I would believe the Buick would be similar.

[rustyrelic]

I haven't done it, so I can say authoritatively that it will work, but look at the string a few lines down: http://forums.maxperformanceinc.com/forums/showthread.php?t=844265

68 Bonneville fuel tank discussion

[bigger=better]

I suppose this is something a hollander manual could resolve...

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[bigger=better]

Hollander show different part numbers for all the sister models

[north]

Unlike the smaller A bodies the 65-70 B bodies each division had unique frames and chassis'. For example the Pontiac ran the exhaust inboard of the frame rails and the chevy had exhaust pipes outboard. The Pontiac gas tank is rather long and quite narrow because of that.

Olds and buick fullsize car tanks are also visibly different from each other.