Share 'Trailering a Tiki 26: proper weight distribution?'

Trailering my new (to me) Tiki 26 home last weekend behind my 1999 Jeep Cherokee, I could not go over 52 mph without inducing side-to-side oscillations.  My guess at the tongue weight was about 100lbs.  Does anyone have advice on how to prevent oscillations?  I'm a fairly decent sailor on the water, but am realizing that I don't yet have a lot of experience with sailboats on land.  Thanks in adva…