It's been a few years like 07 when I changed one on an Alero. I am afraid you are going to have to measure the outside diameter to see if 5/16 or 3/8?
(the outside diameter will be slightly large than the inside) 5/16=.3125 3/8=.375
056-057-058-059 depending on if it's straight or you need a 90?
Pat
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