w123rear problems

[wyton rob]

Hi all , any w123 petrol heads out there who can help me with a rear supension problem. Ive taken out the springs and shock's to weld around mounts, I was hope'n to change springs and shock's over with s-class or w124 is there any do's or dont's.+ do you have to take lower supension arms right down to change springs' as ive had a battle with one to remove the spring.