just turn them on and see,you really can't bind anything up you should be able to see them cange directions when they are on.before you put the wiper arms on turn the switch on and let run a second, then turn off let them park and then put the wiper arms on, that way they will sit parelle with the winshield gasket and they won't goto far either way. hope this helps.
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project 70 chev swb rebuilt 396bb{402}rebuilt th-400 3.73 limited slip 4/5 drop
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69 chevy short wide box project
70 GMC jimmy project
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