old Superliner

[The Mechanic]

Have a few questions about an old superliner that Im looking at. for a project, and possibly once its done a rock hauler. Its an old triple framed oil field winch truck with, an E9 and a third tag axel. A friend of mine told me about the truck he says its got 54k rears in it. Is that an option for a truck like that ratio and top speed ect... Im here in Wyoming and its 2 hours any direction to anywhere so i dont want to get into a truck that cant do 70 without being Tached out all day. That being said one of the reasons its a project is the rear axel is locked up. Would it be worth it to just buy two new rear center sections that have a 4:.... somthing or better ratio. As of right now I dont know the ratio haven't been able to look for myself. Thats all I can think of to ask at the moment. Thanks in advanced to anyone with any information.

[Rob]

5 minutes ago, The Mechanic said:

yeah this is a heavy heavy truck. but does that usually mean that the rear ratio is super low?

Usually, but not a hard rule. I would expect high 4.XX to the mid 5.XX ratio in the rears.

[6368]

post a side shot of the rears/suspension and folks here will be able to tell you what you have.   ratios are stamped in the carriers might need to dig out the wire brush. what transmission you have will also be a factor .

[The Mechanic]

Okay thank you. I need to get down and look at it personally and see what its got but i believe its got the 12 speed mack trans in it. and its a four bag rear suspension set up if that helps at all. 

[Freightrain]

4 minutes ago, The Mechanic said:

Okay thank you. I need to get down and look at it personally and see what its got but i believe its got the 12 speed mack trans in it. and its a four bag rear suspension set up if that helps at all. 

Neway air ride?

[The Mechanic]

it could be of what ive seen of it this is the closet looking suspension to what it has.

[AZB755V8]

Sounds a little strange to be triple framed, 54K rear and have air ride.

Definitely a special spec truck if it is. That heavy spec it will be geared low, maybe 60mph max.

[The Mechanic]

hummm okay. I thought it might be a bit strange. Ive seen new differentials with core exchange for 750 is it possible to drop new diffs in are they interchangeable or will I need to get all new axels?

[Rob]

Looks like a Neway AD-246 suspension which is heavy, and Rockwell Standard axles.

Edited May 23, 2019 by Rob

[The Mechanic]

yeah this is a heavy heavy truck. but does that usually mean that the rear ratio is super low?

[The Mechanic]

Thank you very much.