Hi Oetker,
The top photo shows a 1.6 swing arm, judging by the weld show!
Tel
For the benefit of all Murena owners (I have already called and spoken to Terry as my internet connection is terrible today) but you must be careful with Murena trailing arms. You cannot just swap between 1.6 and 2.2 as there are important differences.
The original 1.6 trailing arm was made from two pressings (top hat cross-section) welded along the flanges and was easily distinguished from the 2.2 trailing arm which was made from four flat shaped plates welded along the corners to form a box section. However, now the originals have all gone, the replacement copies are now BOTH made in the manner of the 2.2 arms so initially they look the same, but they are not! Since the 2.2 has a 260.9 mm diameter rear brake disc the mountings for the rear calipers are further back and if you fit a 2.2 arm on a 1.6 with the smaller 238 mm dia. rear disc, the pads will be half off the disc! Also since the track is 20 mm wider on a 2.2 the hub is 10mm further out each side, and so requires different drive shafts. Since the 2.2 rear discs are unique and more expensive, you don't want to be having to buy these for a 1.6 car.
So please take care when doing things like this or even suggesting the wrong information on the forum. Please check the facts first. Someone unfamiliar can easily be misled if they don't read all of a post and only see the wrong information and not the correction. Thank you.
Roy