[RAIVJUMB]

I have been slowly putting my 70 Judge back together and ran into a snag with the alternator bracket not seeming to line up. I thought that specific large upper bracket was what was used (the car is an IV car) but it seems way off, it could be I have the wrong big aluminum bracket if that is specific to or 70 only. Was the IV set up different in some way and if I am looking for a specific aluminum block piece what is the part #. I have all of the correct pulleys by part # and the PS pump is right, it is just the brackets that are causing me to scratch my head or did the IV use brackets like a 69 or something?

[Wakepowell]

The Ram Air IV uses the same bracket as the other '70 GTO's. I have mine apart now and I will stop my shop and see if there is a part number on the aluminum bracket.

[johnta1]

Is it for sure a GTO bracket?
(I think the Firebird is different)

[Gordon Church]

I think the alternator bracket was all v8's one year only designed primarily with sound deadening in mind

[RAIVJUMB]

I am not sure of anything, I have 2 of the upper brackets for 70 and they both look the same. I did not check the aluminum part as I thought that they were all the same. The other parts look correct, it is just the top bracket does not seem to line up with anything correctly. The alt sits too far back if you put the top bracket up against it, somthing I have is just not compatible.

[02Hawk]

Not sure about the RAiv, but both my 70's had the same bracket, one was a RAiii and the other a YS. Interchangeable .

Have you changed something else in pulley sizes or intake that could cause some fit met issues?

[johnta1]

Is it for sure a GTO bracket?
(I think the Firebird is different)

Sheesh, been so long since I've seen my Bird.
Firebirds weren't aluminum bracket.



So, I don't think you can mess up the location of the top bracket, is it that the pulleys don't line up when connected or just that the alternator won't fit in it?

[RAIVJUMB]

pulleys look good, everything else seems ok it is just the upper bracket will not line up, onlly one point of attachment will line up at a time. I tried it on a 71 455 and it seemed fine.

[455conv]

Posting some pictures of what issues you are having will shed a lot more light on the problem. In the mean time here are some pics of what it should look like.

[RAIVJUMB]

As soon as I reach home I will shoot some pictures (on the 27th) to see what people make of this. I thought that this would be the least of my problems, not so.

[johnta1]

You don't have a 62 amp alternator do you?



1st pic is a listing for the bracket, 2nd is a diagram of the mounting.

[RAIVJUMB]

I have the regular 37A unit, PS. Car is an IV car with ps, Auto, pb, ride and handling pkg.

[Wakepowell]

Here are the picture of the correct '70 PS Bracket and its part number.

[RAIVJUMB]

here are some pics, yes the Intake was modified a long time ago and I am not happy with the way it is looking right now, that said it should not have made the bracket not function?

[Jason67]

Have you tried installing the alt bracket without the alternator? That would rule out the PS/Alt aluminum bracket.

Change the TS bolt and intake bolt out to the proper studs, and remove the top water pump bolt where the bracket is slotted to go behind. Fit the bracket on the studs on top, the water pump arm can flex in a bit. The studs use a smaller thread dia on top for alignment issues.

The only other thing I can think of is if your divorced water passage has been milled where it meets the timing cover, causing the long timing cover bolt to pull the water passage ahead which makes the thermostat stud out of alignment. In that case, might have to slot the TS bolt hole on the alt bracket.

[Jason67]

Also just noticed the fuel line coming up on the drivers side of the thermostat. Verify thats not holding back the alt. My 70 III and IV motors the line comes out on the passenger side of the thermostat housing. Not sure if that makes a difference or not.

[johnta1]

Have you tried installing the alt bracket without the alternator? That would rule out the PS/Alt aluminum bracket.

Change the TS bolt and intake bolt out to the proper studs, and remove the top water pump bolt where the bracket is slotted to go behind. Fit the bracket on the studs on top, the water pump arm can flex in a bit. The studs use a smaller thread dia on top for alignment issues.

I would agree with Jason.

The studs raise the mounting point, that may be what it takes to fit.

As said try it without the alternator to see where the problem may be.

[BLAKGOAT]

what thermostat housing is that? why is it on an angle? that seems to be your problem, I think you have the wrong water crossover

[RAIVJUMB]

I am going to try doing that and see where I get. I would think that due to the timing cover and head bolting points that the cross over would be in the right place. T stat housing , Hmm not sure that might be the wrong one as well. Just got back from vacation so I will have to check it out in the AM. Mark

[RAIVJUDGE]

Also the wire harness retainer should be on the passenger side. That won't change he way the bracket fits, just wanted to call that out.