There are a few spring compressors to rent on the forum. I would replace everything at once. It's a pain to do this work...I just got done doing it. It makes a world of difference, you won't believe you are driving the same car!

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My Primary Driver - '85 300CD - 4-speed conversion, 2.47 rear, lowered, euro headlights, rebuilding (not restoring so much)

Wife's - '08 Saab Sportcombi Aero

Riding a '03 Yamaha Warrior