Thanks so much, Ray and Nancy, for dropping by. Ray and I spent several hours trying in vain to get the shackle bolts I think they are calle off (the two in the front). What we didn't realize is that we were working on the wrong bolts.
I was using the "Trailer Smith's YouTube channel directions but he must have been referring to a different type of spring. ((I don't know how that's possible actually (lol)) The trailer Smith has people locking down the back nuts and then twisting the front ones loose with a breaker bar. Those front ones, though, have splines that keep them dug in. (I was able to get the rearmost bolts off that attack the other end to the trailer off using his procedure - so maybe I just had very stuck bolts..
I have a nice breaker bar, but no matter which position Ray and I tried we couldn't budge them. I was thinking of getting a compact wrench, but then Steve called and he said to work on the back nuts, and those came free easily!
Thank you, Steve!