Chevrolet 1979 Light Duty Truck Owner's Manual page 23

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All except Crew Cab - In a single motion, pull the rear
seat outboard lap belt across the lap far enough to push
the latch plate into the buckle, until it clicks. If the belt is
not pulled out far enough to reach the buckle, let the lap
belt rewind fu lly into its retractor. This unlocks it so the
belt can be pulled out to the proper length. Note that the
Blazer buckle is on the belt end and that the latch plate is
stationary.
•
Crew Cab only- Pull the Crew Cab rear seat outboard lap
belt across the lap far enough to push the latch plate into
the buckle, until it clicks. Crew Cab rear seat outboard lap
belts have retractors which are designed to lock only
during a sudden stop or impact. At o t her times they are
designed to move freely with the rider.
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These belts should be positioned, worn, and released as described
above under "Front Seat Lap-Shoulder Belt." After fastening,
check that the belt is SNUG by pulling the belt firmly across the
lap toward the lap belt retractor. This will allow the retra�tor to
take up slack. (Lap belt retractors with shoulder belts are available
as an accessory on Suburban third seats.)
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Lap belts at center seats (and third seats) also should be
positioned, worn, and released as described above--They do not
have retractors. They should be adjusted to a SNUG FIT by
pulling on the end of the belt coming from the adjustable latch
plate.
ADJUSTABLE
LATCH PLATE­
HOLD AT RIGHT ANGLE
TO LENGTHEN
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To lengthen the lap belt at center seats (and Suburban third seats)
place the latch plate at a right angle to the belt webbing and pull
on the latch plate. The belt should then slide easily.
Additional Rea r Seat Shoulder Belts-Offered As
An Accessory At Your Dealer (On Some Mode l s)
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When properly worn with a lap belt, a shoulder belt can give riders
added protection. It can prevent or reduce impact with the insides
of the vehicle by restraining the upper body in a collision. This
is especially true in a frontal impact.
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To use the detachable shoulder belt, place the knob on the
shoulder belt end in the "keyhole" on the lap belt latch plate
(before the lap belt is fastened.) Tilt the knob as needed to pass
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