Quote:
Originally Posted by Pacecarjeff
I've wandered through Junkyards for 40 years, cars that were crashed back in the day and salvaged by the Police impound. I had collected a 1000 check valves along with portions of those hoses.
Many different vendors were used to produce those hoses for GM, and most were not originally ribbed, The Corvettes are different, because usually only one vendor supplied that one production line. Out of a sample of 100 PVC hoses , I would say only 3 were ribbed. I did not find Corvettes in these yards, and I remember all the ribbed hoses came off of Cadillacs. So in my opinion - Non ribbed PCV hoses are the ones most commonly used on the GM regular production cars and trucks.
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Thanks for the info. I ordered your heater hoses a few nights ago, and only saw the smooth PCV hose on your web page when I was looking, which I already have. I bought mine from Ricks before it way became Eklers, around 1999 or 2000. Not sure if that one is correct or the ribbed one is. There is a lot of different/conflicting info from the many sites, Camaros.net, CRG, and this site, etc. that I have been reading. Still plenty to learn.