Alternator differences between 2000+ W-body and H/G-Body

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Dec 4, 2007 | 12:13 AM

#11

slick94prix

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From: Maumee, OH

Quote:

Originally Posted by samueljackson

Quote:

Originally Posted by slick94prix

IMO, I just couldn't see them changing an alternator on the same engine from platform to platform, it would just make no sense.

I guess I should just run into the parts store and compare the two.

but being on the same eng isnt surefire that theyre the same. cuz its still 2 different bodies all together. the eng harness' are different, so the output wire and regulator harness may need to be in a different location. but as far as the actual mounting, same casing.

so ya, best thing to do atr this point would be to compare ones at the parts store.

and should it happen to be a different clocking, take note of the location on the wire locations.

cuz i have 140 from a cadillac on my olds that has a different clocking than the original. but the harness had plenty of room to safely connect.

I'm not worried about making any sort of extensions, I mess with wiring at work. IIRC, I think I have a few extra GM alternator plugs sitting around in my toolbox.

Dec 4, 2007 | 04:05 PM

#12

samueljackson

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From: burb of detroit. 2 miles north of 8 mile Rd.

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so mainly ur concer between the 2 would just be the mounting of the alt to the eng?

so the wiring, and the clocking of the back is no issue then. ok.

Dec 5, 2007 | 01:14 PM

#13

slick94prix

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From: Maumee, OH

Quote:

Originally Posted by samueljackson

so mainly ur concer between the 2 would just be the mounting of the alt to the eng?

so the wiring, and the clocking of the back is no issue then. ok.

Correct.

BTW, a buddy of mine on the w-body forum was at the parts store, so he checked into it. This is his PM that he sent me.

Quote:

ok did some research. Schucks and NAPA both list them as the same exact alt. my buddy at NAPA confirmed this on his system today. same amps too. in 99, the alt changed in the GP, 2000 for most other W'*. 97-98 are 105 amps, 99-03 are 110. check out partsamerica to see what i mean.

Andrew