Re: Booster and Master Cylinder

Posted by chad hoover On 2009/5/23 18:57:57

humm ok, i'll have to try to find a "packard" core to look at! whatever the one is that uncle put on the greendragon, it's not packard. the m/c looks packard, but is made different. the rear seal is/was a double, double lip seal. and it did not have the port from the resivor you mentioned. and the vac piston in the booster is different, it has a total of about four parts in it. unlike the packard, with poppets and springs and pivots and all that junk! it has been a long time since i rebuilt a "packard" unit, so i would say my memory is failing me here. i thought the m/c's were the same.

As for the new m/c, i work for an auto parts company. one day on down time i decided to call bendix and see if they could shed some light on what the "dragon's" t/v came off of. at first the man i got (jon) didn't have a clue what i was talking about. when i told him i would need to speak to some one who had been there long enough to have delt with 50's era cars. he said he had. once i got him to listen long enough to explain that the unit was the same or simalar to what was used on vettes and tri-5 chevys, he knew what i was talking about. he did some hard core digging while we were on the phone, rattled off all the other cars the t/v was used on, and then got real quiet. he said " we still offer a new replacement m/c for that unit!"
he produced a part number, which i believe was 57001 and i ordered one. guess what i got? a brand-new fresh stock t/v m/c! that has been 5 years ago. i have not tried to get one since. they may have quit offering it now, might be why you couldn't find it on-line. but i know it was not easy for jon, the guy at bendix to find either. and he works there! he said he finaly found it as a listing for a heavy truck maker in the 60's. and i would think as popular as vetts and tri-5's are they would have kept them around.