Athearn RTR 4 axle trucks, which mount?

[NYSW F45]

Ok i think these are Bloomberg "M" trucks.

[TheGloriousTachikoma]

those are Bomberg B bogies. The M bogies only have on brake cylinder per side, a shock-absorber/equalizer occupying the other end. As to which brand of bogies, it doesn't terribly matter, most of a locomotive's performance is in the motor. just make sure the gears are free of flash and lightly oiled.

What exactly are you planning? You wanted to put two axle bogies on a SD40 frame?

[NYSW F45]

The model is a kitbash and a half. From talking to other NJT modelers and employee's with knowledge on the GP40PH-2B's length a athearn rtr sd40 frame was a near perfect stand in without having to cut up and join other frame pieces together.

The frame I got will most likely require some milling and customizing, but i'll worry about that later. This isn't a priority right now with a kid on the way. Slowly but surely it will get built up.

[TheGloriousTachikoma]

I'd never heard of that one before. Esoteric...I want to build one too now.

Well, it seems that the long hood looks like a SD45 with the radiator fans moved forward and one of the DB fans moved to the back. Thinking of starting with a Kato or Athearn SD45 shell?

[diburning]

Looks almost like an MBTA GP40MC except it has a standard cab instead of a CN one.

[NYSW F45]

Originally Posted by TheGloriousTachikoma

I'd never heard of that one before. Esoteric...I want to build one too now.

Well, it seems that the long hood looks like a SD45 with the radiator fans moved forward and one of the DB fans moved to the back. Thinking of starting with a Kato or Athearn SD45 shell?

Well the Jersey Central GP40's were GP40P's that were longer then standard GP40's to accomodate a steam generator. When those were rebuilt they added a new section of hood that makes it look like a SD45. The radiator fans weren't moved at all, the 4th fan is for the HEP which is in the newer hood section.

So yes im going to use an athearn SD45, which I have and is getting stripped tonight. I'll be picking up a GP40X shell eventually and a tunnel motor rtr shell for the rear walkway/steps/pilot.

[NYSW F45]

well there is some talk on the atlas rescue forums that SW1500 trucks might work. Is there anyone who can confirm this and maybe post a pic? Jerome?

[TheGloriousTachikoma]

Originally Posted by NYSW F45

well there is some talk on the atlas rescue forums that SW1500 trucks might work. Is there anyone who can confirm this and maybe post a pic? Jerome?

SW1500 trucks have a shorter wheelbase than the Blomberg trucks. Blomberg sideframes won't fit either.

[NYSW F45]

Originally Posted by TheGloriousTachikoma

SW1500 trucks have a shorter wheelbase than the Blomberg trucks. Blomberg sideframes won't fit either.

ughhhhhh. so much for that idea.

[NYSW F45]

what about MP15 trucks?