A51T and A51S

[cncFireman]

Found a couple old As for sale. The tandem is in Fairbanks and the tractor is in Brazil somewhere the ad was in Spanish and would not translate well. It did say it had a Cummins power plant which led me to first question wether or not it was actually a even more rare A55 but the ad does state A51.  I hosted the picture so they don't just disappear never to be seen again.

 

 

[BillyT]

Couple really solid A's the shipping would cost as much as the truck!!

[cncFireman]

So something does not add up. I did send the seller of old yellow a email to verify model. He said its serial is A55T1363 but it's a tandem chassis and I believe the Mack build lists only 494 A55 models built anyways. It also says A55 built from 52-53 not 51 as the ad lists.

[j hancock]

The radiator grill/shell on the yellow (A cab) one sure looks more L model than A by its size/shape.  Really the whole front clip looks big.  Maybe it is an A model cab on a LF chassis?  It may have started as a single drive and somebody made it into a tandem.  With the exhaust through the hood, the owner was into customizing.

I have the same production dates as you do indicating 52-53.

Not sure about the Cummins being available.  Think it would have been a Mack-Lanova diesel.

[russell t]

There is a picture in an photo archive book  of an A model with the wide L radiator. Note how close to the hood the headlight is.  RT

[cncFireman]

The A55 it appears has the wider radiator setup. My A51 has 8 shutter blades per side. I found another picture of an A55T at a show and it also has 10 shutter blades per side and a wider nose look. So that rig may actually be an A55T on some other chassis. The A55 got the bigger lanova diesel at the time. The A54 also seems to look like it also has the wider grille and radiator from the pictures I dug up.