I have put lots of Group 48 batteries in Vanagons. They are not really
taller than 41, though various size charts show them that way. The chart
listed size wouldn't fit at all if it were true, too tall. They have
slightly better cranking specs, are not quite as long, and thus are a
bit easier to maneuver in and out of the tight battery boxes under the
front seats. They are not just 41 marked as 48, the cases are different
in several aspects.

This photo shows the similar heights and the better specs of the 48 vs
41 of the same brand.

http://images.thesamba.com/vw/gallery/pix/638455.jpg

I have purchased them recently from Costco and before that Wmart. It
seems that Wmarts near me have stopped carrying the 48 size but still
carry 41.

Mark

Dennis Haynes wrote:
> The early VW Diesels and many Audi vehicles used a group 49 which about 2" longer and slightly taller than the 41. The group 48 should also be taller than the 41.   sometimes since the 48 is so close in size they will label a 41 as a 48. A true 48 is to tall for the stock compartment. A shame as there are group 48 AGM batteries available.
>
>