One problem related to air brake antilock control unit/module has been reported for the 1997 Ford E-350. The most recently reported issues are listed below.
1997 Ford super club wagon XLT (e350) abs system engages inappropriately causing total lack of braking power. The abs control unit does not record an error code so my mechanic cannot find a cause. I have had to remove the abs fuse in order to have trustworthy brakes.