Nth New South Wales Australia | A 15 speed is a very durable trans,we have two of them,both RTX and both on trucks specced out for road-train work.We operate them as 12 speeds(use bottom 5,middle 2,top 5) and they give us 60mph/100kph@1650rpm, so will go plenty fast to get a ticket if you like but have a few gears down low to get going.Main thing I can see here for you is as most over there like their trucks as light as possible the 15 will weigh a little more than a 10.
If I was to spec a new to me truck out today it would have nothing but an 18 speed,but the 15's have been fine to date.Weight for us is not as big an issue,we need a bit of weight to carry more fuel and heavier specs and still be able to have 110,000lb payloads.
Mike. |
Transmission Swap?
