Reviving a bit of an old thread here, but do you by any chance know if the AW450 and AS68RC would be interchangeable?Please correct me if I’m wrong, I’ve been doing some research on this same topic. I’m in the US so years and options might be different?
The 4he1 was discontinued in 2004 and replaced with the 4hk1 in 2005?
The AW450-43LE 4 speed automatic was used until 2006.
In 2006 the AS68RC/A465, 6 speed automatic, was introduced. This transmission was also used in 09-13 dodge 3500/4500 cab chassis, and later, in a wider range of trucks, as a slightly different AS69RC.
The dodge AS68RC or AS69RC 4wd extension housing and output shaft should bolt to the Isuzu transmission. This gives you the option to use a dodge driver drop 29 spline NV/NP 271 or 273 (manual/pushbutton 4wd) transfer case.