Tapered pins?
I'm no mechanic but had to do some Torsion bar removal being assisted by one.
Obviously, take all the weight off the pins. Lube is good.
If it's a tapered pin mechanic Rollie says if you can 'love beat' the bracket that the tapered pin goes into, apparently physics tells them to come out.
A small sledge and just a consistent easy hit over and over and over until gravity causes it to fall on your head.
I know yours is in a different spot then in the photo but hopefully it's the same idea.
Additionally you can put a little pressure around the knuckle either with ratchet straps, hydraulic jack, come along or log leverage if you do it in the bush.
I beat on the end of the pin (wrong) on the torsion bars (wrong) with a hammer fork (wrong) until a guy 20 years older then I am told me to move over.
As the photo shows he hammered the mounting bracket, without much effort and just got it done......... so just get it done. Good luck.