GMC YUKON DENALI 2000 Manual page 261

The tools you'll be using include the jack (A), the jack
handle extension (B), the jack handle (C), the wheel
wrench (D) and the ratchet (E).
The jack handle extension is used if the flat tire is on the
rear of the vehicle.
Attach the jack handle (and jack handle extension, if
needed) to the jack.
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