Originally Posted by FlyingDiver
Nine connections? Seriously? What kind of setup is that?
All Roadmaster. Starting at the RV to the back, here they are:
1) The pin where the 4" drop receiver plugs into the RV receiver.
2) The pin where the tow bar plugs into the drop receiver.
3) The long bolt that connects the head of the tow bar to the tow bar square tube. This Roll axis connection allows the tow bar arms to move 1 up and 1 down.
4) The horizontal bolt through the head . This Pitch axis connection allows the arms to move Up and Down TOGETHER.
5) The vertical bolt through the tow bar head. This Yaw axis connection allows the arms to swing side to side as when the towed goes through a turn behind the RV.
6) The spring loaded pin in the center of the tow bar that, when pushed, allows the bar arms to telescope in and out.
7) The swiveling, screwed on, end on each tow bar arm with the 3/4" hole in the end. This roll connection allows the RV and the towed to roll left side and right side up and down independently of each other (This is a different roll condition than #3 above.
8) The 3/4" pin that connects the tow bar arm to the baseplate plug in bracket assembly
9) The plug in bracket assembly that inserts into a baseplate tube and roatates 90 degrees to lock in place.
EVERY one of these connection has slop! If there are 9 connections and each one has only .050" (the thickness of a dime) of slop in the front-to-back direction, that adds up to almost 1/2".
My VERY worn old tow bar had MUCH more. Especially in the head unit of the tow bar.
The only connection missing from the picture below is the 4" drop receiver to RV receiver.
Go back and count yours again. If ANY two pieces move independently of each other.... There IS slop there!