differential locks

["ANDREW FINNEY" <DFINNEY@msn.com>]

I was studying my new Bentley last night and I discovered an interesting 
upgrade in the 1984 UrQ. Before I bought my used '83 UrQ I was under the 
impression that the center and rear diffs were separately lockable, not so. 
Has anyone made the conversion to the separately lockable diffs? It appears 
the only changes necessary are a new (i.e. late model 4000Q) vacuum switch and 
double the number of plastic vacuum lines to the actuators. Is the swap a good 
idea? Are there conditions where the center-only lock would come in handy?

Andrew Finney
1983 UrQ