I recently did the front suspension on 2 SDs. Both cars, one of the bolts the hold the UCA and the LCA to the body would not come out. The final solution was to use a sawzall to cut through the bolt. It was easy once the decision was made and new blades were purchased.

I also decided to change every thing except the tierods and drag links which were almost new and easy enough to change and don't require the spring to be out. Both cars drive wonderfully. Lemforder has been frequently recommended but aren't always available. Take your cances if you don't want to spring for OE parts. I don't have enough mileage to say how long the repair will last but the car is enjoyable again.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.