the image suggest that you may not have enough air in your strut. If I recall, the manual recommends about 4 1/2 inches of the strut to be seen.
I would put the plane on jacks so the strut is not compressed and then put connect an air compressor to it and inflate to 120 pounds. I would wait a day and then put a gauge on the strut to see how much pressure remains.
If there is still 120 pounds, then I would lower the plane and see how if there is about 4 1/2 inches showing. IF not, I would send both my mains strut to Delta Strut for overhaul.
Most professionals prefer Nitrogen, but the Model 35 manual section 5 page 8a only says 100 PSI.
When you get the struts back from Delta, they look brand new!
But, before I would do this, I would put my Bonanza on jacks, remove the wheels and brakes and examine the brakes. That material looks too black to be from the struts.