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Just replaced the rear Springs in my 740 on Saturday.
I did one side at a time.
I did the following;
Loosened wheel nuts(not removed).
Jacked up the rear axle, to a good working height, Put Axle stand under body jack point.
Removed wheel nuts and wheel.
Removed bottom bolt(and nut) from shock.
Undid and removed spring retaining stud with a long extension & socket.
Lowered axle down as far as it would go, the body should be resting securely on the Axle stand. As long as you have the body height right..
The Spring should now be loose enough to maneuver out.
Fit top and bottom fittings to new spring. Thats the rubber bits.
Reassembly is just a reverse of the disassembly process.
You might have to carefully clamp the stud in a pair of vice grips on the shank (the unthreaded bit) and using a spanner undo the nut till its almost but not quite at the end of the stud, to help with the reassembly. When you do it up the stud will seat into the body first, then the nut will run down the stud and tighten up on the assembly.
I managed to knock the job over both sides in about 1.5 hours. No Drama.
Just work safe!
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