GMC 1995 Safari Owner's Manual page 180

Towing From the Rear
(Except
All-Wheel Drive)
NOTICE:
Do not tow with sling-type equipment or the rear bumper
system will be damaged.
Use wheel lift
or
car-carrier equipment.
Additional ramping may be required for car-carrier
Use safety chains and wheel straps.
equipment.
If your vehicle has the all-wheel-drive option, a dolly MUST be
used under the front wheels when towing from the rear.
5-10