71 Alarm Escutcheon

[Kenneth T.]

Need a little help here. The AIM shows the alarm switch on the rear panel to have the esutcheon (bezel) to be group 10.536 3897449. The GM parts book shows that as 56-67 Corvettes ? CC sells the part as a generic for all years... I have seen many cars with the switch cylinder mounted flush with the body, no esutcheon. Mine is a late build car. Should it be there?

Ken

[Thomas H.]

Re: 71 Alarm Escutcheon

Ken,

From my Sept 4, 1970 (41 years ago today), 1971 LS5.

Tom

[Warren F.]

Re: 71 Alarm Escutcheon

Kenneth,

In my 1971 P & A catalogue effective October 1970 (1971 Corvette parts book), part # 3897449 shows 56-71.

[Gary B.]

Re: 71 Alarm Escutcheon

Need a little help here. The AIM shows the alarm switch on the rear panel to have the esutcheon (bezel) to be group 10.536 3897449. The GM parts book shows that as 56-67 Corvettes ? CC sells the part as a generic for all years... I have seen many cars with the switch cylinder mounted flush with the body, no esutcheon. Mine is a late build car. Should it be there?

Ken

Ken,

According to my notes, GM # 3897449 first appeared as the escutcheon for door locks for 1967. It was then used to service all Corvette door locks from '56-'66, as well as '67. It was also used for the alarm lock for '70 and '71. It was GM discontinued in June of 2003.

Most of the Corvette catalog companies sell a repro. One of the less expensive sources is Dr. Rebuild, for $8 each. Corvette Central wants $11.50. NOS examples occasionally appear on e-bay, often selling for $20 each. I think the repro part is accurate, so no point in wasting money.

Gary

[Dennis D.]

Re: 71 Alarm Escutcheon

Need a little help here. The AIM shows the alarm switch on the rear panel to have the esutcheon (bezel) to be group 10.536 3897449. The GM parts book shows that as 56-67 Corvettes ? CC sells the part as a generic for all years... I have seen many cars with the switch cylinder mounted flush with the body, no esutcheon. Mine is a late build car. Should it be there?

Ken

You should be able to see the notch cut out in the hole in the body panel The escutcheon has a locating tab to fit it. Don't think the switch alone has the tab.


Tom I'm surprised to see the small key briggs and stratton switch with the escutcheon, and also on such a late car.

[Terry M.]

Re: 71 Alarm Escutcheon

You should be able to see the notch cut out in the hole in the body panel The escutcheon has a locating tab to fit it. Don't think the switch alone has the tab.


Tom I'm surprised to see the small key briggs and stratton switch with the escutcheon, and also on such a late car.

Dennis -- check the TIM&JG. I am not batting 1000% today so I won't give a number, but I am sure it is higher Tom's example by another couple thousand, I think.

[Dennis D.]

Re: 71 Alarm Escutcheon

Dennis -- check the TIM&JG. I am not batting 1000% today so I won't give a number, but I am sure it is higher Tom's example by another couple thousand, I think.

terry did check,(p28) no serial #'s listed.Says B&S used into early 70. Figure a sept car having later gm key? Was the escutcheon on the early BG switches?

[Terry M.]

Re: 71 Alarm Escutcheon

terry did check,(p28) no serial #'s listed.Says B&S used into early 70. Figure a sept car having later gm key? Was the escutcheon on the early BG switches?

I would have looked in the Exterior section (after all that IS where the lock is on the car). Page 46 complete with photos.

I should be in bed now, not doing this.

[Joe L.]

Re: 71 Alarm Escutcheon

Ken,

According to my notes, GM # 3897449 first appeared as the escutcheon for door locks for 1967. It was then used to service all Corvette door locks from '56-'66, as well as '67. It was also used for the alarm lock for '70 and '71. It was GM discontinued in June of 2003.

Most of the Corvette catalog companies sell a repro. One of the less expensive sources is Dr. Rebuild, for $8 each. Corvette Central wants $11.50. NOS examples occasionally appear on e-bay, often selling for $20 each. I think the repro part is accurate, so no point in wasting money.

Gary

Gary-----


Yes, the 3897449 was a late 1966 released part. The predecessor part was GM #3725526.

[Thomas H.]

Re: 71 Alarm Escutcheon

Dennis -- check the TIM&JG. I am not batting 1000% today so I won't give a number, but I am sure it is higher Tom's example by another couple thousand, I think.

My 71 is S/N 1632. It has an interesting mix of 70 and 71 parts on it. I can't say for sure that this lock is the original one, but I would have expected any replacement to be of the newer style.

When I bought the car, the keys I received included, what I believe to be, one set of original ignition / glove box keys (stamped "A" and "B") along with two Birggs and Stratton keys for the alarm.

Tom

[Dennis D.]

Re: 71 Alarm Escutcheon

I would have looked in the Exterior section (after all that IS where the lock is on the car). Page 46 complete with photos.

I should be in bed now, not doing this.

I'm with you. Not the best time to have been doing that. Stopped at the first section mentioning the alarm. Wasn't even going to look at all, but did a quick look anyway. (bad idea)

Now that it's a new day, I checked out p46. Interesting the pics do not show the eschuchoen on either switch.

[Thomas H.]

Re: 71 Alarm Escutcheon

I'm with you. Not the best time to have been doing that. Stopped at the first section mentioning the alarm. Wasn't even going to look at all, but did a quick look anyway. (bad idea)

Now that it's a new day, I checked out p46. Interesting the pics do not show the eschuchoen on either switch.

The text in the JM does mention the use of one though.

My car did go through one repaint back in the late 70's and it appears as though the switch was removed as there is no evidence of masking. The rear glass is original as the Rockwell stickers with 1970 dates are still intact. Maybe the body shop that did the paint work damaged the original one taking it out and had this one laying around, I don't know......... and never will............. Just another oddity.

When I do a body off in a few years (after my 2 kids get through college, 6 years to go.....), I'll have to decide whether to go with the 71 style or keep this one.

Tom

[Terry M.]

Re: 71 Alarm Escutcheon

My 71 is S/N 1632. It has an interesting mix of 70 and 71 parts on it. I can't say for sure that this lock is the original one, but I would have expected any replacement to be of the newer style.

When I bought the car, the keys I received included, what I believe to be, one set of original ignition / glove box keys (stamped "A" and "B") along with two Birggs and Stratton keys for the alarm.

Tom

Tom,
It slipped by me yesterday (see what a brand new day will bring) that your Corvette is a 1971. That does surprise me. I would not expect the B&S alarm lock on a 1971. If there is any chance of communication with earlier owners, a question about the alarm lock might be in order.

[Kenneth T.]

Re: 71 Alarm Escutcheon

Thanks to all for the replies, interesting. Mine is a late build (21715) with the oval GM B key for the alarm. I will find the bezel no doubt.
The painter decided not to insall it, so here I am.

The shipping charges for a small item double the cost so I may wait until I "really need" something else which should not take long

Ken

[Terry M.]

Re: 71 Alarm Escutcheon

Thanks to all for the replies, interesting. Mine is a late build (21715) with the oval GM B key for the alarm. I will find the bezel no doubt.
The painter decided not to insall it, so here I am.

The shipping charges for a small item double the cost so I may wait until I "really need" something else which should not take long

Ken

Ken,
Does your alarm lock hole have an offset opening to orient the lock so it doesn't rotate? The hole dimensions are in the 1971 AIM. If one looks in the 1969 AIM one will see the size hole for the B&S lock -- it is substantially smaller than the hole for the style you have.

I have labored for years under the impression that the factory used that escutcheon for those cases where they made the hole oversize -- I thought it served as a kind of bushing, and thus some cars got it and others didn't. I wish I could remember where that brainstorm came from. I am thinking it might have been one of my many talks with George Barlos or Phil Hawkins, but then it could have just been a case of a bowl of good chili.

If Tom ever takes his alarm lock out a hole measurement might help solve that mystery as well.