Half ass?!?! That's far to much credit your giving them. ;-)
Learn a lesson and never go back to them bud..
Two years ago I had them replace a clutch in my truck when it went while I was out of town or I would have just spent the afternoon and have done it myself..
Well six months later the clutch blew apart while it was driving up a cut line.. Got her home tore it down to the clutch -- low and behold it was the wrong clutch and only had 3/4" inch contact on the flywheel no wounder it failed.. Replaced the clutch and low and behold a week later the transmission failed.
Pulled it and noticed something odd when I drained it -- it was 80w90 in it not GM syncromesh.. $3500 to rebuild the transmission or $2800 for a rebuilt unit. I made a stink about it and faught with for a year before they finnaly refunded the full price on the cluch they did and agreed to pay %80 of the cost of the transmission -- unfortunatly not before a lawyer had to be involved.
I wanted the full costs which was the sticking point -- they argued over it as the tranny had over 320,000Kms on it..
They nutorously sell the incorrect parts to people...
As a warning they also own Parts Source.