Quote:
Originally Posted by rbgray1
Joel,
Does a 4 trailing arm setup benefit from a panhard bar?
Can you send me a pic of your setup? Would be very easy at this point.....just not sure Panhards and 4 trailing links go together.
I do know you want the panhard as long as absolutely possible, to create the largest arc possible.
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The biggest problem with a Panhard bar is the axle will move in a slight arc - with the arc being reduced through as long a Panhard bar as possible. While there is certainly some compliance in the bushings of a 4-link rear suspension, this is not ideal.
You may want to look at a Watt's linkage (
https://en.wikipedia.org/wiki/Watt%27s_linkage ) - you get the lateral location benefits of a Panhard bar but the axle remains centred. While there is still some lateral motion, it is significantly less than a Panhard rod would produce.
A very thorough assessment of suspension including 4 link suspension and Watt's linkage. It touches briefly on Panhard rods but discards that design due to the issues of arc travel of the axle.
https://eprints.usq.edu.au/3971/1/Parkin_2007.pdf