Thanks for all your input. Here is what Yakima suggests:

Hello, William. Thank You for your inquiry about Yakima Products, Inc!

We have a number of different ways to install a rack on your vehicle. they
all utilize the existing factory rack limiting it to 100 lbs. With both of
your kayaks you are over the weight limit. The best solutions would be to
install tracks beside your factory rack. You would need:

1 x Control Towers (set of 4 #8000214)

2 x Landing Pad 1 (pair #8000221)

1 x Crossbar (pair)

The crossbars come in 48", 58", 66", and 78" sizes you would need to do some
measuring to figure out how wide a bar you need. If you have any other
questions, please contact Customer Service at 888-925-0703 7am to 5pm
Pacific Time, Monday through Friday. If you reply to this email, please
include all previous correspondence.

Thank you,

Yakima Support


"Michael Daly" wrote in message
...
On 23-Oct-2005, "bits" wrote:

Did you replace the factory rack and if so what did you replace it with?

If you're willing to make a rack, you can save a lot of money over the
cost of a Thule or Yakima rack that fits onto your existing Previa
rack. Given the age of the Previa, that might be a good idea. Check
out the ideas on Kayak Wiki, especially the first big paragraph.

http://www.kayakforum.com/cgi-sys/cg....pl?Roof_Racks

Mike