Are you sure your are looking at 205/70-14's? I was only able to find 205-14's on the web site. This is somewhat taller than stock.
if did in fact find a high capacity 70 series tire, if the tread fits your needs, go for it. A 205 width tire will support more load at a lower inflation pressure than an 85 series tire of the same diameter. Use the factory recommended pressures for the 205/70 that was OEM and you should be set.

Dennis

----- Original Message -----
From: Geza Polony
Date: Monday, October 2, 2006 3:45 pm
Subject: A new tire thread!
To: vanagon@GERRY.VANAGON.COM

> Why does everyone "dread" these, anyway?
>
> To recap, it looks like the best tire size for OEM alloys (not
> steel rims)
> is 205R70-14 as the width is closer to the 6" rim width.
> However, almost no
> one makes these in a reinforced tire.
>
> CIP has Nankang brand 8-ply D-rated 205R70-14's for around a
> hundred a
> piece, and they sound like a heck of a tire. But I'm concerned
> about harsh
> ride and noise. Does anyone run these or have other experience
> with them? I
> really don't want to lose my fillings every time I hit an
> expansion joint in
> the highway.
>
> Is it better to stick with 185's, as in Yoko's or Bridgestone's
> or Conti's,
> C-rated, 6 ply, and damn the rim width issue?
>
> This is for a full camper, moderate driving, no off road, no
> snow. The
> Bridgestones on there aren't bad but are wearing down.
>