Well, I'm no 4 bar expert, but no one else seems to have jumped in yet, so let me give you some basic thoughts.

My understanding about 4 bars is that you want them to be equal length and parallel to the ground when at ride height. They should also be parallel to each other so that you get the parallelogram (is that a word ?) effect when the rear axle is going up and down. From the way I read your description, are you saying that because of clearance issues your bars are not parallel to each other now?

If you can post a picture or drawing it would help.

By the way, welcome to the forum.


Don