The word "torque tube", here, means an enclosed driveshaft. A 54 3600 has an open drive shaft. Like a regular drive shaft. You may have a two piece open shaft with a center carrier bearing. If these shafts have a large enough diameter you are OK. You may also be able to use a one piece. Talk to a good driveshaft shop. They will advice for your truck and HP and make whatever you need including proper Ujoint/coupling and spline ends to fit what you have.
You do not want a Torque Tube driveshaft. (enclosed drive shaft)

I may or may not have answered your question. I don't know exactly what you are asking. But this is a start.

What is going on with the TCI Stink Link?


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