I have a 1986 W124 230TE. The left sway bar has broken. When I get that welded on the right side breaks. Vice versa. Is there any end to this problem? It is costing me a fortune in new tyres and and the balance of the car is shocking.

Please help me!!!!

Also, id like to know if i can retrofit an inline cylinder from the 300 series of the same age into the car and if it is worth it.
Thanx