I am in the process of changing out the replacement heater hoses on my 72 non AC. What are the correct hoses, the ones that most of the catalogs sell with the "GM" stamped on or the ones that Dr Rebuild sells with the "JB" and "JA" stampings? Also, what should I use to clean up my expansion tank that is in very good condition?
Thanks for the help.
Thanks for the help.
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