STARTER JACK SHAFT HOLDING TOOL ('89-'06 MODELS)STARTER JACK SHAFT HOLDING TOOL You no longer have to destroy a screw driver or jam a rag in the starter teeth! Slides over the starter teeth, allowing you to loosen the bolt to remove the jackshaft assembly when switching out starters or removing the inner primary Holds the jackshaft by the splines without damaging them and to achieve proper torque on bolt Double sided. One side for 9 teeth ('89 '93 starters) and the other 10 teeth ('94 '06 starters)