Yahoo! Answers: Answers and Comments for What is this thing on school buses/big vehicles? [Other - Cars & Transportation] Copyright © 2012 Yahoo! Asia Pacific Pte Ltd. (Co. Reg. No. 199700735D). All Rights Reserved. http://ph.answers.yahoo.com/question/index?qid=20120419172114AAugiaO From Z en-ph Tue, 18 Jun 2013 05:31:12 GMT 3 Yahoo! Answers: Answers and Comments for What is this thing on school buses/big vehicles? [Other - Cars & Transportation] 142 18 http://ph.answers.yahoo.com/ http://l.yimg.com/sc/28206/answers1/images/a/i/ph/se/an/ph_answersim_logo.gif From TheWise1: drive automatically changes gears but when you put it into a ... http://ph.answers.yahoo.com/question/index?qid=20120419172114AAugiaO http://ph.answers.yahoo.com/question/index?qid=20120419172114AAugiaO Thu, 19 Apr 2012 17:27:53 GMT drive automatically changes gears but when you put it into a certain gear like 1 it only stays in first gear. From Mark Jack: the number is the gear for example if the bus is in 3ed gear ... http://ph.answers.yahoo.com/question/index?qid=20120419172114AAugiaO http://ph.answers.yahoo.com/question/index?qid=20120419172114AAugiaO Thu, 19 Apr 2012 18:25:13 GMT the number is the gear for example if the bus is in 3ed gear but is haveing a hard time pulling up the hill the driver shifts into second this will put less strain on the transmission.