I bet it's the trunnion joint (the joint with the plastic sleeves). I had the same symptoms once, and it disappeared after I rebuilt the joint on that side.
Doug Braun '72 Spit At 05:52 PM 3/17/2003 -0500, you wrote: >My 1980 Spit has been experiencing a little problem of late. Almost every >time I take off from a standing start, I hear a "thunk" from the left rear >tire area. At first, I thought it was a stone under the left wheel that >shot out from under the tire under acceleration, hitting the wheel well. It >does it just once, always from the left side. It has the tone of hard metal >hitting hard metal, with little or no ringing present. I can sometimes feel >the "thunk" as a vibration in the seat of my pants. When I accelerate from >the stop light, I'm more likely to hear it when I start out "smartly" than >from a smooth acceleration. /// [EMAIL PROTECTED] mailing list /// Send admin requests to [EMAIL PROTECTED] /// or try http://www.team.net/cgi-bin/majorcool /// Archives at http://www.team.net/archive /// Send list postings to [EMAIL PROTECTED] /// Edit your replies! If they include this trailer, they will NOT be sent.