Technical Rear Panhard Bar (Again)

My ‘39 Mercury sedan has a front panhard bar. I am planning on installing 2” longer rear spring shackles so I want to add a panhard bar to reduce sway. In my mind it seems like installing it in the same orientation as the front (attach on the left side of the frame to the right side of the axle) would give best results. My experience with this is zero so I’m asking someone with knowledge of these setups to say yes good to go or install facing the other direction. Thanks in advance

 

That’s how I’ve typically done them.

 

I have 3 vehicles with factory rear panhard bars. They're all the left side frame attachment geometry that you described.

 

Make the bar(s), as LONG as you can make them.
The longer they are, the better the chassis will work. All just simple geometry.

Mike

 

My 2 cents worth.
Panhard bars are great, but not sure they work as a sway bar, particularly with a transverse spring, definitely stops side to side movement of the axle.
Fixed side(chassis) should be on the same side as the steering box and make sure it is horizontal to the ground at ride height

 

this

Since the pig in a 9" Ford was offset to the left I installed the frame mount off the right rail to get the bar as long as possible. With only a couple of inches of total travel and R&P steeting it well work fine.

 

Ya might look at Watts linkage.

 

I alway use factory designs as a go by. I have never seen a factory high mounted bar. The idea its to get them as low and as long as possible. The moving end should be about 3/4's the way to the wheel. This reduces side to side jerks.

 

I used the Competition Engineering Moroso panhard bar installation kit instructions C2307 as a guide. (I don't know how to do the link thing, but you can look it up). Easy to follow if you are making your own. I made one to use on a Chevy rear end, and inserted a piece of thread in there to make it adjustable.