I'm not sure about the '90 model, but in my '87, the battery compartment is
only about 7.25" high. I think that the proper battery type is Group 41.

-Mark McCulley

>I stopped by Sears today and found out that they make a Diehard Gel Marine
>battery that is type 27, 12"L x 6 13/16"W x 9 7/16"H.  Does anyone know if
>this will fit under the drivers' seat in a 1990 Vanagon?