Plan get limework speed shop Oil-lite shackle bushings to replace worn urethane bushings which better ride on front hi beam drop axle anyone got Oil-lite under drop axle how different ride between two different bushings
You probably won't notice any difference. Spring shackle bushings are pretty small and not much involved with isolating noise. I have used Delrin for bushings and found them to be very good as spring bushings. Delrin is a hard plastic that would perform similar to your Oil-Lite Bronze.
The bronze bushings will give lubrication and will last longer. Only thing it will not take heavy loads in one direction for any given time were it wears. In your case it will work great were i feel the delron may feel tighter and less slop but only for a short time.