Kenworth K125

A mate is doing up a Kenworth K125. The Cummins big cam engine is up for a full rebuild but he is considering swapping out the 14 speed Spicer and is thinking of fitting an automatic.
Question is which auto is suitable and does not require a computer to drive it. Load capacity is supposed to be no more than 30 tonne tops for carting vintage tractors on.

Powerglide, 2 gears, no sparks.

Since I know absolutely nothing about running gear for trucks, I trust that there is a Power Glide for trucks and not the one out of a Holden!
Therefore I need to ask who makes this auto please?

Cobbadog, Your mate will need to install an Allison Automatic If he decides to go that route..

www.allisontransmission.com/

The Aussie Defence Force had some Trucks fitted with Allison Autos behind Cummins' back in the day..

Cheers hayseed,
I recently had a look online for Allison autos but did not which model would be required. Sorry to be a nuisance but is there a specific model auto he should consider?
thanks again in advance.

IMHO put a Roadranger in it, 9 or 10 speed. Time will tell.

Can recall dad had a Allison in a Atkinson when working for Hutmil at Pakenham behind a v692 and a few hills flown at Shoreham you had to reverse down as it would hold gears to hold over the top

67

Rough guess something along the lines of a HT750, there are a few versions with and without retarders.
Think the newer versions are 1000, 2000 , 3000, Somewhere in there they went to computer control on the trans.
Cheers Steve

I know nothing about any of these at all but from all road tests the like of Truck and Bus magazine did
Allison auto tested really well and a lot of the time as good if not better than a road ranger

I would think anything from the 70's to the early 90's would be fine

I guess what size Cummins would have a lot to do with what trans you would fit as torque and HP ratings

Paul

Not sure of how this version is controlled, manual or computer but some idea of what they can handle
Cheers Steve