Interior Mirror For 64 coupe
I have a day/night interior rear view mirror in my 64 coupe and was told it was an option for late 64's, some say it is not correct. I have looked at the NCRS 1963-64 tech guild but I am still curious. Does it have a MFG name and date on it, is it a clear glass mirror (day only)? What is the correct rear view mirror for my 64 coupe and where do I buy one. As always, thank you in advance to the enthusiasts who supply the info request. Thank You.
-
-
Re: Interior Mirror For 64 coupe
At least in the options guide for 1964 from the NCRS Spec guide, no day/nite mirror is mentioned, the first appearance is the Z01 option in '65 when backup lights and day nite mirror were combined into a package.Bill Clupper #618 -
Re: Interior Mirror For 64 coupe
The MF Dobbins 'Fact Book' lists the 1964 dealer installed accessories which includes GM 985657, rearview mirror, inside, non-glare. The item was not available from the factory for 1964...
So, since the NCRS judging yardstick is to present the car as manufactured by Chevy, with then current dealer prep, but absent any owner/dealer inspired options, the day/nite mirror would constitute a deduction during Flight Judging.Comment
-
Re: Interior Mirror For 64 coupe
Thanks Bill. I did notice the chapter on the mirror. I need to know which one is correct for the 64. I noticed some catalogs have a date stamp in the glass, not sure how judges look at this area.
Thanks for the reply,
AllanComment
-
Re: Interior Mirror For 64 coupe
That explains it better Jack. The car I have was restored in 83 and has three top flight awards, yet other owners have said it was incorrect. Any good catalog company's offering up a good reproduction. I noticed some have requested a date stamp in the glass.
Thanks for the reply.Comment
-
Re: Interior Mirror For 64 coupe
A few more words here... If you check your copy of the AIM, you should find the standard interior mirror is called out with TWO part numbers (primary and secondary supplier). It's pretty typical for one of these to have been GM's Guide division while the second was an outside vendor.
The descriptive text in the JG books ALWAYS defines the interior mirror date coding with an example along the lines of 'X DMI Y' and that's a SPECIFIC reference to month and year dating from Donnelly Mirror Inc.
The equivalent mirrors from Guide did NOT use date coded glass and that tidbit isn't mentioned!Comment
-
Re: Interior Mirror For 64 coupe
Jack, I not going to get in the middle of this pi**ing contest, but I do know that this statement is not correct:
"TWO part numbers (primary and secondary supplier). It's pretty typical for one of these to have been GM's Guide division while the second was an outside vendor."
It didn't matter if a part came from GM division or an outside vendor, the part number would have been the same for a like part. The Engineering releasing system could not/did not allow a like part to have two different part numbers.
I have not done research to determine the reason for the two part numbers in the AIM that you mention, but I'm sure it has some other explanation.Comment
-
Re: Interior Mirror For 64 coupe
There's at least one more part in the 63 AIM that I can think of that shows two part numbers for what is basically the same part, one of which is listed as "optional". That would be the 3814137 and 3814560 fan clutches. (hope I have the part numbers right)
Both are basically the same, physically, with some mechanical differences.
One is mfg'd by Eaton and the other is mfg'd by Switzer. (spl) Either clutch would appear on new cars of the same model year.
The standard inside mirror is the only other part that I can think of that is also supplied by two different sources with two different part numbers for the same application.Comment
-
Re: Interior Mirror For 64 coupe
There's at least one more part in the 63 AIM that I can think of that shows two part numbers for what is basically the same part, one of which is listed as "optional". That would be the 3814137 and 3814560 fan clutches. (hope I have the part numbers right)
Both are basically the same, physically, with some mechanical differences.
Michael, the key word in your above statement is basically.............if they were EXACTLY the samethey couldn't have the same part number. Yes, an OPTIONAL part would have a different part number. Don't get that confused with an optional build configuration , that's a different story.
One is mfg'd by Eaton and the other is mfg'd by Switzer. (spl) Either clutch would appear on new cars of the same model year.
It didn't matter who manufactured the parts, they were all released by Engineering.
The standard inside mirror is the only other part that I can think of that is also supplied by two different sources with two different part numbers for the same application.
I'm sorry, I just don't buy it..................there has to be SOMETHING different about the parts or the releasing engineer really f....d up, and the specs dept missed it, and the scheduling dept also missed it. and the drafting dept also missed it. There were lots of check and balances in the releasing system.Comment
-
Re: Interior Mirror For 64 coupe
I'm not confused.
The "OPTIONAL" on the AIM sheet indicated that the assy plant could use either part number. And, the reason both of these fan clutches ALREADY had their own part number is because they were shown and available in service under their own part numbers before the AIM for that model year was released. The parts book shows two clutches for the same application without a physical description.
The same is true for several other parts, such as turn signal flashers and windshield wiper blades. Both vendors (Anco/Trico etc) had their own GM part numbers, yet, the parts both functioned and installed exactly the same.
On the other side, many parts were slightly different and came from different vendors but ALL carried the same GM part number in the AIM. An example would be a standard blackwall tire. It could have been supplied by any of several different suppliers but the assembly line/AIM part number was the same. That's because they were never available in service selectively by brand. (or at all in this case)
This isn't a misprint in the 63 AIM. The same "OPTIONAL" fan clutches were shown in all of the 63-67 AIM's.Comment
-
Re: Interior Mirror For 64 coupe
John,
I guess you can go crazy trying to put it all back 100%. My goal was to keep it clean and as close to showroom as I can without breaking the wallet. I'm learning.Comment
-
Re: Interior Mirror For 64 coupe
I'll chime in with one - both the Eaton and Schwitzer clutches meet exactly the same Engineering requirements in terms of their friction-vs.-temperature profile for controlling fan function, and both install exactly the same way and are dimensionally the same in terms of lengths, bolt circles and fasteners, so both are shown in the A.I.M. as being 100% interchangeable in terms of function (and stayed that way for many years for many other GM vehicle usages as well).
However, they use different technology in their internal design, were designed by the suppliers (not by GM), and each supplier separately patented their design and technology long before they sold them to GM. When GM adopted them and gave them GM part numbers, each supplier's design got a unique part number due to their technical, physical, and configuration differences (not their functional similarity).
When Delco "copied" the Eaton clutch design and manufactured fan clutches for several years, those Delco clutches got yet another set of different part numbers (until Eaton sued for patent infringement and Delco had to stop producing them).Comment
Comment