Designer 35RLTS and Jayco Talk...Thanks Frank!!

Ok have a question for everyone and I should know the answer to this...

Where are the zirc(?) fittings on the Designer wheels and how much do I grease them?

Also we think we have a problem, slight though...this past trip when we are coming to a stop we feel the trailer wheels "skidding"..have eliminated most things but can't figure it out...see the posting I have in the TOWING section under "FIFTH WHEEL BRAKES"...