well,h165 diff's came in stanzas(there's that name again)-3.7:1,180b station wagons-3.89:1,series 1 bluebirds - 3.89:1,series 3 b/bird wagons-3.89:1,some 4wd utesas the front diff,maybe even the 200b wagon.so you can have a nice cruising ratio to a stump puller ratio,all for the price of haunting wrecking yards.

as i showed before the h165 is bigger, it has bigger axles and everything and is a stronger diff, main reason i went to it is becuase you can get 4.1:1 and 4.875:1 ratios quite easy and its stronger, it is the same diff that the bluebirds and vanettes had, not sure about what utes had it

edit:
ute h165 is same width as 1200 diff but bluey and vanette ones are wider

Does anyone know what the differences are between H145 and H165? Is one stronger than the other?

What years did the utes come out that had these in them?

Cheers

dont think anythings stamped
went out and took ROUGH measurements
of the bit in the centre just from top to bottom

h145: 7" or 180mm
h165: 8.5" or 215mm

theres a big enough diffrence, with this you should have a pretty good idea

How do I identify which diff it is?
Does it have H145 or H165 stamped on it somewhere?

Which year did the utes start using h165 diffs?

when you say b120 ute,is it a h145 or a h165 diff,they aren't interchangable.if it's the early one (h145),it'll fit.as for the gx 5-speed in shoom's 1000,1:1 fifth or overdrive?.the 1:1 five speeds don't have good lubrication to the input shaft bearing,so will have a short life span.if this is the gearbox you have,the minute the box gets noisy,pull it out & put new bearings in it.if you don't,this bearing seizes on the input shaft,which destroys the input shaft,the cluster gear & whatever gear you're in at the time.had this happen to me at the street drags once,& it was a very expensive repair.if it's an overdrive box,shouldn't be a problem,except for the bashing of the transmission tunnel for clearance.

I have an A15 in my 1000, with a dgv weber and extractors.. so far the standard box has held together. my only worry is it still has the 1000 clutch in it. this will be rectified when I get my GX 5 speed ;)

Not sure on whether the gearbox is original 1000 or not. I will certainly ask now 8)

The diff would be going into my B120 ute, so i would imagine the suspension etc wouldnt need changing in that case?

got to ask,is it a standard 1000 gearbox,or did it come out of a 1000,but was originally from something else.if it's a stock 1000 box,it's life expectancy is not great,as these boxes are puny.as for the diff,the alloy centre will bolt into the 1200 housing,has a 4.375:1 or 4.625:1 ratio(if it hasn't been swapped for something else) & should take a mild a15 easily.good ratio for motorsport.the ute housing is also narrower than standard 1200,so can't be used under a 1200 without moving spring perches. so yes,no & maybe.