Chevrolet 1993 S-10 Pickup Owner's Manual page 224

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When your vehicle is being towed, have the ignition key
off. The steering
wheel should be clamped in a straight-ahead position with a clamping device
designed for a towing service. Do not use the vehicle's steering column
lock for this. The transmission (either automatic or manual) should be in
N (Neutral) and the transfer case (either manual shift or electronic shift), if
you have one, should be
in 2 WHEEL (two-wheel drive). The parking brake
should be released.
Don't have your vehicle towed on the rear (drive) wheels, unless you have
to,
If the vehicle must be towed on the rear wheels, don't
go more than 35 mph
(56 km/h) or farther than 50 miles (80 km) or your transmission will be
damaged. I f these limits must be exceeded, then the rear drive wheels have
to be supported on a dolly.
If your vehicle has the four-wheel-drive option, a dolly MUST be used under
the rear wheels when towing from the front.
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