2010 Toyota 4Runner Owners Manual - Page 601

5-2. Steps to take in an emergency Taking out the spare tire STEP 1 Assemble the jack handle extension as shown. Be sure to tighten each bolt securely. CTH52AS006 STEP 2 When connecting the jack handle extensions, use the jack handle to tighten the square head bolt. Make sure that the bolt fits into the depression on the joint. When connecting the jack handle extension with the jack handle, tighten the round head bolt by hand. CTH52AS007 580