One problem related to brake disc caliper has been reported for the 1997 Toyota 4Runner. The most recently reported issues are listed below.
The brakes on this vehicle is inadequate for the weight plus the anti lock system doesnt help either it only causes more lost of braking power especially on down hill stops. Toyota made these vehicles with two different size front brake calipers. Unfortunatly I have the smallest one which just does do a good job stopping such a load. ( dot number: ).