Kevin C
Trail Leader
Reged: 05/20/00
Posts: 6033
Loc: No where in particular
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I have been running a 110 am alternator from a 3000GT for several years.
The only down side to the swap is the pulley. The factory pulley on the original alternator has a 15mm bore and cant be opened up.
The 3000gt unit comes with a serpentine pulley and has a short 17mm shaft. To make it work you need a custom pulley ( GM / Ford pulleys wont fit). I worked with an alternator shop that got me close, but not quite.
How much interest would there be in a custom pulley to make the swap a drop in? I did find an off the shelf pulley that can beit modified. The question is what will it cost? As a wag I'm guessing about $60, including the core that they start from.
3000gt alternators are around $40 used and $110 rebuilt. Total cost SB around 100 to 160 to upgrade to a 110 amp unit.
Thoughts?
Kevin
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87 Dodge
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Mudraider
Body Damage is Cool
Reged: 12/16/07
Posts: 1352
Loc: Orange Park, FL
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Sounds like a good deal, but I don't recollect ever having seen a 3000 in a JY. That is odd. 
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plh
Rock Warrior
Reged: 11/15/08
Posts: 956
Loc: Milwaukee Wisconsin
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100 amp GM alternators with the correct pully are about $95 new.
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- 88 Raider: Header, 5 spd, 4.62 LSD F & R, Weber, T/L, OME Dakar Rear Springs, 33/12.5/15" MTZs, PLH LOs, Justice Bumper #2, Dual Bouncies, planning 4d56T
- Gen 2 1992 RS M/T
- 2005 Montero Limited
- Gen 1 - PARTS FOR SALE
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JohnnyBfromPeoria
Trail Leader
Reged: 06/10/02
Posts: 5077
Loc: Phoenix, AZ
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Make it easy for me, regardless of where it comes from/what it is, and I'll buy one.
John B.
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'87 Raider 2.6 Turbo Auto, Under Construction
'95 Montero SR, 35x12.5/15 BFG M/T KM-2's, Rock sliders, Qtr panel chop, gas tank lift, 2" BL, Aisins
'86 SWB Auto, 2" BL, 33" BFG KM-2's
2012 Chevy Camaro LS V6/M6 IPF S/C
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off-roader
Mitsubishi Forum Moderator
Reged: 01/16/00
Posts: 15496
Loc: Bay Area, CA
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Quote:
Make it easy for me, regardless of where it comes from/what it is, and I'll buy one.
John B.
Ditto... within reason 
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Off Roader
96SR (3.15:1 xcase, 35's), 89 V6 SWB (33's)
96SR Build Up Thread
Old web page
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rxinhed
The Mitsubishi Parts Guy
Reged: 02/21/05
Posts: 5896
Loc: Gerber, CA
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Ditto x2, my original alt is showing signs of pending doom.
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1987 Raider (Roxy), 1988 Mighty Max turbo (Pearl), 1987 Ramcharger (Ryan), Sundry parts and parts cars
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haztoys
Rock Warrior
Reged: 08/03/09
Posts: 629
Loc: Prescott AZ
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Hey Kevin ... Dont forget that alt is on Hyundai Sonata 95 to 98 too .. Hope that helps ...
Wow $110 for "that" alt is way cheap ..
If you ever see a FWD Dodge in the mid 80's with a 2.6 look at that alt that one "I" like its Mitsu but its a big body alt 90 amp ..Made to charge a battery not just maintain a charged battery like most of the later alt are..It has a two v-belt pully on it ...
That a good price on the pully and alt..
Have fun
David
Hazardous Toys inc
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justice
Roll Me Over
Reged: 02/06/00
Posts: 3163
Loc: Coastal N Carolina, USA
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Kevin,
Just to be clear, this custom pulley would be for the 2.6 guys only, since that set up uses a V belt to drive the Alternator. Right?
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99 Gen 2.5, fixing, awaiting build
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..
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Kevin C
Trail Leader
Reged: 05/20/00
Posts: 6033
Loc: No where in particular
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Quote:
Kevin,
Just to be clear, this custom pulley would be for the 2.6 guys only, since that set up uses a V belt to drive the Alternator. Right?
Justice, this is for the 2.6 motor with a V belt.
If things work out we can look at what it will take to other conversions.
Kevin
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87 Dodge
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Kevin C
Trail Leader
Reged: 05/20/00
Posts: 6033
Loc: No where in particular
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Quote:
100 amp GM alternators with the correct pulley are about $95 new.
The 100 amp GM alternator is what a lot of Starion owners have used. It's not a bad choice.
The only issue is it requires and adaptor to bolt to the block and a differant wiring harness to the regulator.
The part from a 3000gt has the right mounting ears and bolts up with only a simple spacer.
Also by using a Mitsubishi alternator the connector to the alternator does not need to be swapped.
Both alternators should get the power wire upgraded.
Neither is a show stopper... The only issue I have seen is getting the right pulley. My idea was to make it easy to use a Mitsubishi part and have it look like a factory put it there.
I'm looking at a couple of ways to do this.
More later,
Kevin
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87 Dodge
Edited by Kevin C (12/20/10 11:18 PM)
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