Apparently the Longchamp used two different racks. The early series 1 and 2 used a rack from cam gears, in the UK, similar to jags of that vintage. The later cars use a ZF rack. When I had my rebuilt the seals came from from a variety of Volvos.
By the way my car vin ends in 2515 a mixture of series 2 and 3 parts and locations of engine mounts etc.
Hope this has been some help
Chris
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