Quote Originally Posted by 34_40 View Post
I've been mullin' this over for a couple hours now... and if were mine, I'd probably track down a 2 speed rear end.

Not sure how popular they were down under.. but there's always another angle right!?!?
I tried to reply to you lot this morning, but the little blue jelly-fish just went whizzy-whizzy around in circles and nothing happened...so I gave up after six or seven minutes. ( The time it takes me to have a ciggy.)
Two speed Eaton diffs were on pretty well every larger (over three or four tons,) truck I drove, with Road-Ranger 'type' three speed boxes on things getting up around the fifteen twenty ton (or more,) mark.
I drove milk-tankers (getting up around forty tons,) for more years than I care to remember, so yes; they're available in NZ, and that thought had occurred to me too.
The problem here is that if I fitted a new axle, I would also have to fit new (possibly larger,) rims.
That would require re-certification, as this vehicle, although only a Tonka toy of around three tons, is classified 'Heavy Goods Vehicle, (hgv) under NZTA rules, and any changes of that nature would require their involvement...and I don't want to get involved with those bastards ever again!