Hope you folks can help.

I am going to install an Optima yellow top battery as the second battery
in my '90 Westie. Found them at Batteries Plus for $169.95 in the
Columbus OH area. Jegs price is $179.95.

Now, how do I get the drivers seat completely out.  I checked Haynes,
but all it shows is bending up a lock tab to allow the seat to slide off
the track.  I have not done that yet, but after that is done, how does
the rotating plate and sliding track come off, so that I can get the
battery in the compartment.  I plan to install it on its side, and use
the top posts (which would then be on its side), as was suggested in a
vanagon.com posting in 1997.

Any help would be greatly appreciated,

Thanks

Ralph Geho