Craig,
You can make your own up with a combination of rod ends and/or heim joints attached to swedged internally-threaded steel tubes. The heim joint/rod end decision is based on how much "give" you are willing to tolerate for a smooooother ride. About $15.00 for the tube and about $15.00 per end.
Fully adjustable so you can get that perfect pinion angle or wheel base that you've always wanted.
See
www.speedwaymotors.com.
Brian