Hi John.
I re-visited the lower wish bone bushes i purchased in the past, which should have had the larger amount of rubber in them due to the photos on the sellers listings, twice i got caught out before i managed to get hold of two sets of Unipart ones.
Here are the photos i took today of the lower wish bone bushed left to right they are Febi, Chinese, Unipart.
As you can see all are different either in the castings, rubber and most certainly how the insert is situated with regards to fitting onto the arm.
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Febi & Chinese
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All there together Unipart on the right.
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Seeing that the inserts are all at a differing angle i wonder if this is why we have trouble getting them to line up with the bolts holes in the subframe.
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These are poly bush ones we fitted back in 2014 that's another story.
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