BMW 5 E28 - there are two diameters of the rear arm bush, 27 mm (031314 or 036232) and 44mm (031693). Models manufactured to 82 years 27mm, after 82 years 44mm. The above information is indicative, check bush diameter before placing order.
This bush is only available in 90ShA hardness (yellow) because the original rubber bush is made of a hard rubber compound. The use of the 80ShA hardness bush (red) will reduce the driving of the car to the original rubber bush.