M1010 alternator mounting question

[87J]

My truck was converted to a single 12v alternator before I bought it using the upper mount. I'm looking to add a 24v to the lower mount to run a big inverter. The upper mount is 7 7/8" spread between holes and the lower is 8 1/2". So I'm guessing the original use 2 different size alts or I'm missing some kind of adjustable bracket??? I already have a 24v alternator with the 7 7/8" spread, is there bracket available to make this work or do I just get alternator with the wider spread?

 

[m38inmaine]

The original bracket is a one piece unit. You can buy a 12v alternator that fits in the original bracket but I don't know if they have done that on yours. Post up a picture of yours.

 

[87J]

Still a 1 piece bracket. So originally the lower alternator was a larger framed 24v and the upper was a smaller 12v right?

 

[Skinny]

I can't remember clearly off the top of my head but I replaced both of mine with a Leece 555-JHO. They required some grinding on the case to fit but the spread was the same on both areas. I do remember the physical bracket to engine block having a spacer on mine for the lower mount. Maybe yours was removed causing a spread difference. It has been awhile since I've looked at that system so someone may chime in with better details.

 

[m38inmaine]

No, originally there would have been two identical 24 volt alternators mounted. This is the thread on how I did mine.

http://www.steelsoldiers.com/showthread.php?101135-M1010-DUVAC-Removal-Plan-quot-B-quot

 

[riggermedic]

The lower alt adjusts tighter swinging downward while the upper tightens the belt swinging upwards. They are identical as far as I know. If you install the 12 volt 555 jho as mentioned above you may need to modify your bracket a bit. The original alt is completely round, the 12 volt has a protrusion that bumps the bracket and cuts your adjustment range down a little bit.

 

[87J]

I think I found my issue, looks like someone slit, bent and half ass rewelded the bracket to fit the smaller frame 22si/24si up top. What you guys think is it shaped slightly different than its supposed to be?

 

[m38inmaine]

Since it's not cut all the way through and the curves/angles look right I would say it might have been a sloppy "crack" repair.

 

[Recovry4x4]

Give me until tomorrow, I will get a pic of an unmodded one to compare.

 

[87J]

Thanks all I remodified the bracket to work for me.