I'm still getting a clunk on the driver's side, even over small bumps like the little reflective raised bumps in the center line of the road. Here's what I've done to the front end:

-New Sachs Advantage strut inserts to replace worn out Volvo struts.
-Turbo swaybar with new Volvo bushings and brackets.
-New (used) strut tube on driver's side because I couldn't get the gland nut off and one of the four ball joint bolts broke off in the housing.
-New upper endlink bushings.

Here's what I've done to try to eliminate the clunk.

-Made sure the wheel bearings are not loose. Torqued to 40 lbs. while spinning the wheel, backed off to where the wheel turns nicely with slack at zero or just barely perceptible.

-Made sure the four new ball joint housing bolts at the bottom of the strut tube are torqued to 17 lbs like the book says.

-Made sure the gland nut is tight with the wheel hanging free and with the wheel jacked up 2 or 3 inches. Nut is not fully seated. Two or three threads are showing. The insert is the same length as the old one.

-Made sure the top center nut is tight. I also tried it with a washer under it. The nut is tight.

-Made sure that the three nuts at the top of the strut tower are torque to 15 lbs as the book says.

-Tried a known quiet strut that I have in the garage.

-Checked the end links. Lower bolts are tight. Everything feels snug when prying with small pry bar.

-Checked the bolts at the front and back of the control arms. All tight, including the three that hold the bucket.

The clunk wasn't there before this job. I'm running out of things to try. It sounds like a bad ball joint to me. Could doing this job take a marginal ball joint over the edge or take what appears to be good control arm bushings over the edge? Are all 240 end links the same? I did use two cleaner to replace the two that were on the car. Thanks for any advice on what to try next.
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Thanks everyone for all the help, Doug C. 81 242 Brick Off Blocks, turbo bars and wheels, M46; 86 244, B230, 155k , auto; 81 242 Turbo, intercooled, M46, 122k; 93 245, B230, M47, 153K.