Which alternator should I have? 69 l71 825? 884?

[george culolias]

The judging manuel says both???? It's a 4 speed anyone know? It's a July car if that matters

[Mark #28455]

Re: Which alternator should I have? 69 l71 825? 88

My Oct 68 has the 825. My Feb 69 has the 882. I'm not sure when the 884 phased into production.
Mark

[Jack H.]

Double check the JG...

You'll find adjacent to the alternator PN's listed is a column giving application descriptions. The different PN's vary based on the car's configuration (SB vs. BB, HP, A/C and TI v.s standard ignition)...

[george culolias]

I looked at it 3 times, maybe I'm dumb but I can't

tell which alternator my car is supposed to have. From what I see it says both alternators are used for a 435 hp 4 speed car with ti.

[Dick W.]

Re: I looked at it 3 times, maybe I'm dumb but I c

I really think that you will find that the either one could be used. We have not been able to pinpoint any change date. The only thing that I can tell you that is different is that the 884 used an updated rectifier bridge. Cannot even determine a date for that change. Show up with the 882 or 825 correctly dated and you will have no problems.

[george culolias]

Thanks Dick

Thanks Dick... I thought that might be the case, but before I spent good money I figured I'd ask all of you experts.

[Mark #28455]

JG is likely missing info

Has anybody seen a real 825 alternator dated much into 1969? Why does the service manual (printed in 1968)only list the 825? Why are there NO early original 884's?

The alternators were most likely phased into production. I bet the 825 was first, then there was some upgrade which was called the 882, then it was later replaced by the 884.

Tell me if I'm wrong.
Mark

[Terry M.]

"Why are there NO early original 884's?"

Well there are, or were -- they are not falling from the trees, however. I have seen one or two in my years as team leader. Some strangely configured internals -- soldered rectifier bridge -- unusual color and configuration of the voltage regulator -- all inside what looks like a standard 884 case.
Once I get over my case of NCRS disease I'll remember the name of the L88 owner in NJ who has an early 884 on his car. Back when I was 1970-72 team leader he, John Pirkle Jr. and I had extensive discussions of the internal differences in the early 884. John even had a collection of some of those parts. Very interesting minutia, but its value for judging -- almost nil -- and that is likely why the info is not in the TIM&JG.

[Mark #28455]

Wonder if it's real.

There is no reason the L88 would have a different alt than a L71 or L89. My Oct 1968 L88 still has its original 825 alternator (prior owner only paid $1000 for the car and had no reason to touch it, car has sat since 1978), and my Feb 1969 L89 has its original 882 (prior owner had it sitting on blocks in the side yard for 6 years and didn't care about restoration before my brother bought it in 1984).

Mark

[Terry M.]

Re: Wonder if it's real.

I'm not suggesting that the L88 had a different alternator than any other TI or AC equipped 1969 big block. I simply responded to the issue of early built 884 alternators. The early built 884s were different internally than later built 884s. The owner I was trying to think of is Bill Vyn. And yes, I am sure the alternator on his car is the real one that was installed on it in St. Louis.

[Mark #28455]

Re: Wonder if it's real.

How early is "early" for an 884?
Thanks,
Mark

[Dan M.]

Re: Wonder if it's real.

I have a original 1969 L-71 4sp roadster Built March 5th 1969 with a 882 Alternator dated 9b17 , Febuary 17th 1969.

Dan

NCRS 35068

[Terry M.]

Early 884

Sorry, but I can find no record of his car's build data in my files.

[Terry M.]

The body was built

the first week of November 1968 -- serial number in the 6500 range. I haven't been able to find my records of the 884 alternator build date, but I am still looking.

[Mark #28455]

My L88 was built the last week of October 1968

It has an 825 alternator.
Mark