Lets go back and see!!!
 

1962 photo taken D4 7U 4forward  2 reverse 

The parts d4 traxcavator that I have has 2 reverse and 4 forward. It seems like I remember seeing that option listed in one of my parts manuals. Either way the option does appear to exist.
By the way Neil if your buddy with the traxcavator needs any parts mine is complete minus the pump and control levers. I'm keeping the undercarriage and direct starter, everything else is up for grabs.

French tractor? Has a Wright blade.

neil wrote:

Thanks Scott, would you happen to have the small bracket that bolts to the right-side main ram that trips the lift lever when it gets up to height? His is missing, I guess when they field-swapped out the cylinder, they forgot to reinstall that bracket. Do you have the cover that goes over the pony, and the rear weights? Otherwise, his is pretty much complete, albeit worn out : )
I have the bracket, yours for shipping. 
Mine is factory direct start so no pony. Has a winch(that I'm keeping) so no wieghts
 

If my informant is correct, the two sped reverse option only appeard towards the end of production of the 'U' series tractors.

Wombat

Hi this tractor was one of two that the owner had both exactly the same with consecutive serial nos they came to New Zealand and the blades were made under licence in South Africa as in those days it was part of the British Empire and to save U S funds both Wright and Birtley were built in Sth Africa and Britian These tractors to my knowledge were some of the very last to be built

AHHHH