BenzWorld Junior Member
Date registered: Apr 2013
Vehicle: 1964 Unimog 406, 1967 230S Fintail.
Location: SE London
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Compensator spring relacement.
I replaced the Hydromat on my 230s Fintail the other day with one of those spring kits supplied by Febi Bilstein, I have read on here that it can be a bit of a struggle to wrestle the bolts in so I wanted to relate my method. I got the Hydromat unit off quite easily and it had pretty much lost any spring and the cars backside had been pretty low with a fair bit of negative camber, so I cleaned up the diff and offered up the spring and bracket and even with the right axle detached from the shock and drooping down the bracket seemed a mile off from the bolt holes and the spring is very stiff indeed. I got out my spring compressors and quickly realized that they would not fit between the coils of the compensator spring, I then noted an 8mm hole in the centre of the spring pedestal on the bolt on bracket and had a brainwave, I drilled the hole out to 10mm and bought a section of 10mm studding and some deep 10mm nuts, the studding was poked through the centre of the spring and bracket and then through the eye on the top of the differential using the large washer that is used in the same position with the Hydromat, I then just wound the studding up compressing the spring assembly about an inch and a half . I then jacked the right axle up until the bolt holes in the bracket and axle lined up, I had to pull the spring assembly down slightly but overall it was very straight forward with no swearing or skinned knuckles and most importantly no crossed threads.
Once the car was back on the ground I rolled it back and forth a few times and it looks pretty good as far as ride height is concerned, its maybe a little high at the back but its probably got more to do with being used to seeing the overly low ride height than a problem with the spring kit and I will take a closer look at it once I have replaced the tired front subframe mounts and made sure the shocks and things are ok, Bill.