I saw a 5 speed sunny box on ebay starting price $1000. so they are getting rare as you can get a conversion kit from castlemain rod shop or dellow that will convert a 5 speed supra box or celica box into the ute.

Quote:
You can not 'bore out' a 1200/ A12 engine to 1500cc as it would need a bore size of 82.5mm [from 73mm] & I don't think that the end pairs of bores are spaced that far apart [center to center]
Have a look at the engine number. The prefix [A12, A14, A15] should tell you what the core engine is.

Do you know what features in a gearbox you want?
Do you want direct in fifth, or overdrive?
Do you want a standard shift pattern or dogleg pattern?
Do you want a light sport box,[56A] a heavy duty box,[60A] or a super heavy duty box?[63 series]
Do you need the original cable clutch operation, or do you have the facilities to engineer a hydraulic clutch operation?

Lots of choices here in Datsunland, but it would be a good idea to know just what it is you are seeking & why.

If you have an A15 powered Ute with the original diff, then I suspect that a 60 series overdrive box with conventional shift pattern & cable clutch operation would best suit your needs, but be warned, they are not cheap.

Question to the gearbox experts.
Is the 60 series four speed gearbox case [bellhousing] interchangeable with the five speed one? If so, then US five speeds with hydraulic clutch systems could be converted with a junk four speed donor box over here.

if you want to know wat engin block you have have a look just behind where the distributor goes into the block it should have stamped either A12 A14 or A15 thats the easyest way to tell wat motor you have

The gearboxes are interchangable between a series. How about this

I want to sput a 5 speed gearbox in my ute
however i don't know whether i have an A15 engine or whether it is a 1200 bored out to a 1500
is there someway i can tell???
what is the best gearbox setup to get?