front coils on SK conversion
Mike,
One problem you may run into with the lighter coils is that you could start hitting the bump stops more than you wish. We have a 2001 E250 based SMB with a relatively recent SK conversion (2007 F350 front axle). With the stock E250 coils (3700#), we were hitting the bump stops often & hard. Craig at SK gave us some 4600# coils he had lying around to prevent this, but I was worried about getting too stiff a ride & lifting the front end. Instead, we put air bags in the 3700# coils which adds a very non-linear spring constant to the existing coils. Filling the airbags to the middle of their pressure range almost eliminated most of the crashes into the bump stop without adding to the harshness of the ride. In fact, qualitatively I think it even smoothed out the ride somewhat. That said, I, and especially Bonnie, think the ride is still too harsh so if you find any solution to smoothing out the ride with the front coils, please post.
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Alan & Bonnie
2001 E250 V8
SK 4x4
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