GM alt no.1100937- Joe L.

[Edward J.]

Joe, could you tell me what this alternator fits.

[Joe L.]

Re: GM alt no.1100937- Joe L.

Joe, could you tell me what this alternator fits.

Edward------


GM #1100937 was originally used on 1971-74 Cadillacs and was a 63 amp SI series alternator. However, if the alternator you have has been through a commercial rebuilding operation, then likely all that remains of the original alternator is the drive end case half (the part with the numbers stamped on it). The rest of the alternator could be completely different from when it was a 1100937.

[Clem Z.]

Re: GM alt no.1100937- Joe L.

it fits a lot if this list is correct. http://cgi.ebay.com/ebaymotors/ws/eB...d=290123918622

[Edward J.]

Re: GM alt no.1100937- Joe L.

Thanks guys look like its going to the junk pile.

[Joe L.]

Re: GM alt no.1100937- Joe L.

it fits a lot if this list is correct. http://cgi.ebay.com/ebaymotors/ws/eB...d=290123918622

clem-------


As far as what it would fit, I'm sure the list would be even longer than the one they have shown. However, as far as original application, the only one I can find is 71-74 Cadillac although it's possible there are also some original truck applications, too.

By the way, I don't think that the alternator pictured in the eBay item is even configured like a GM #1100937. A GM #1100937 is a series 10 SI, internal regulator alternator. The alternator pictured looks like a DN series, external regulator type alternator. It's possible, though, that it's using an SI series drive end case (with the number 1100937 stamped on it) since I THINK the DN and SI drive end case halves can be interchanged.

[Edward J.]

Re: GM alt no.1100937- Joe L.

Joe, are there any pieces I should salvage before dumping seems to be all original?

[Joe L.]

Re: GM alt no.1100937- Joe L.

Joe, are there any pieces I should salvage before dumping seems to be all original?

Edward------


Can you post pictures of the front and rear case halves (with fan and pulley hopefully removed)? If they are certain configurations, they might be valuable. Also, if the rotor and field coil are in good shape, they might be worth saving to use on another alternator.

[Edward J.]

Re: GM alt no.1100937- Joe L.

Joe, this was the alternator that was on my 72 when I brought, it appears to be like the original style (1100544 63amp). front and rear case halfs, there was nothing wrong with it as it was working.But maybe a rebuilt one many years ago. are the case halfs worth something?

[Joe L.]

Re: GM alt no.1100937- Joe L.

Joe, this was the alternator that was on my 72 when I brought, it appears to be like the original style (1100544 63amp). front and rear case halfs, there was nothing wrong with it as it was working.But maybe a rebuilt one many years ago. are the case halfs worth something?

Edward-----


It depends upon their configuration. I would need to see them to tell you for sure.

[Joe L.]

Re: GM alt no.1100937- Joe L.

Edward------



Without seeing the configuration I can tell you this much:

If the drive end case half has 5 or 6 ribs supporting the bearing housing and those ribs go all the way to the perimeter of the case, then the drive end case half has value. For a GM #1100937 alternator, it depends when it was made. If it was made in earlier 1971, it may have the 5 rib case as described above. If it was made later than that, then it probably has a very common and "non-valuable" case (except maybe to someone doing a concours restoration on a 1971-74 Cadillac).

If the split ring end case half has the "7 rib" heat sink for the internal voltage regulator, that's a valuable case half. However, it's unlikely that any 1971 or later alternator would have this. But, once again, if it's very early 1971, or if the commercial rebuilder just happened to build up this alternator with such a case half, it's possible.

[Terry M.]

Re: GM alt no.1100937- Joe L.

Ed if you want to try to move it to Cadillac people, send me a PM and I'll see if I can facilitate that. Of course, I too would need to see the configuration.