Look at the bushings up close on their sides and see if there are any casting numbers or Ford, Mopar, GM etc insignias.
The casting numbers are sometimes close to the part numbers. So posting them in the General section here might be someone familiar with part numbers, like Moparts people that work in dealership service are parts (or even on Google).
The casting number often can determine a rough idea of the date of the part application.
It looks like a factory sway bar setup to a truck or something. The blue bushing look OE as do the brackets.