Buick 1995 Century Owner's Manual page 178

2. Position the lower sling crossbar directly under the
rear bumper.
I
3. Attach a separate safety chain to each side of the axle
inboard of the spring.
4. Be certain your vehicle is towed no faster than
35 mph (56 k d h ) and no farther than SO miles
(SO km) to avoid damage to your transaxle.
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