You will need to drop the strut to get the long bolt out of the upper arm. This is what worked best for me:
- release and remove the long lower bolt from the damper fork attaching it to the lower arm.
- release the ARB droplink (just one of its bolts, you don't need to remove it
- release and remove the bolt holding the damper in the fork and split them
- let the fork rest on the lower arm or remove it completely - this will make you a lot of space under the damper
- split the upper arm balljoint holding it to the wheel hub strut
- release the 4 bolts in engine bay on top of the suspension turret - this will allow you to drop the upper support/upper arm/damper/spring assembly few inches lower
- remove the upper arm bolt, replace the arm and put all back together
This is what I used for suspension install, maybe you don't need to do all of it for the upper arm, maybe it would be enough to disconnect the ARB, lower fork bolt, split the upper arm ball joint and release the 4 bolts in engine bay and by this you might be able to drop the suspension strut low enough to take out the bolt of upper arm...
The job is fairly easy, to only problem are stuck and rusted bolts
Don't forget to to the tracking after, its really a must. Once I forgot it and ruined the tyres in 2 months as the tracking was almost -3mm toe-in after upper arm change...
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