Diff bush advice needed

[DAVID-gffe0]

|https://thumbsnap.com/50kJIfMQ[/url]
Hopefully attached are a couple of photos for my rear diff which I have just taken off. My knowledge of bushes is very limited and before I took the diff out my plan was to change the bushes but the pictures I have seen vary slightly to what I have got. Also looking at my bushes they seem in very good condition (they need a little clean) and to me do not require changing (certainly no knocks or bangs etc) are these the standard bushes? Do they do polybushes in black as these look like polybushes but I am guessing they are rubber. What are your thoughts as to what type of bushes they are and in your opinion would you change what appear to be very good condition ones (the central rear one is the same condition just harder to photo) the bushes are around £50 to buy so ideally I don't want to be spending this just for the sake of doing so, your thoughts?

[Steve_D]

Those look like poly and also look in good condition.
I see no reason to replace them.

Steve

[DAVID-gffe0]

Hi thanks for the prompt reply,. Yes they are in really good condition and this photo is how they come off of car, I have since cleaned them and look even better. Just wanted that bit of reassurance.