I converted my 55 Hudson about 3 years ago, and my 56 Packard about 2 years ago - both are still cooling well. My son converted his 94 Jeep about 3 years ago also, and it is still working well. In all of these conversions, I first vacuumed the system and checked for leaks - and fixed the ones I found. I did not replace the original hoses (they were not leaking). I had a bad evaporator valve (leaker) in the Hudson, my son had dumped the R-12 by mistake as he was pulling his engine for a rebuild, and the Packard has apparently a very slow leak (like 3 or 4 years to go down) which I have been unable to find. The 134 doesn't seem to make it any worse. I drove the Packard today, and ran the AC, as it was a very warm day, and it's still cooling fine. Dick Benjamin ----- Original Message ----- From: "Brad Hogg" <roadhogg@xxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Friday, April 25, 2003 3:15 PM Subject: Re: IML: 68, R134 conversion > Dick. What is the longest period of time you have had 134 in a car that was > converted from R-12? I filled my 78 with 134 last summer and it worked > great. I've only heard people say that in time it could cause trouble. I > just am wondering how long it has been tested. > > ----- Original Message ----- > From: "Dick Benjamin" <dickb@xxxxxxxxx> > To: <mailing-list@xxxxxxxxxxxxxxxx> > Sent: Friday, April 25, 2003 11:19 AM > Subject: Re: IML: 68, R134 conversion > > > AutoZone, and probably other similar stores, carries a conversion kit for > about $35, and it has everything you need, including the refrigerant. I've > used it successfully on 3 cars now, no problems. > > Dick Benjamin > > >