i wouldnt have a clue what it is nor what to look for when indentifyingh it. got it for free from m ex g/fs father so cant complain!

My understanding is that the square headlight A15 powered wagons came with a quite rare 3.7:1 diff ratio.
Otherwise 99% chance is it will be a 3.9:1 ratio.

me? thrashing the datto?.....nahhh *whistles* i drive it a bit more gently now, no more burnouts or idiotic driving. diff has been replaced with a b310 wagon diff, have no idea what ratio it is so hopefully it will last longer.

My h145 lasted 11months of hard thrashing behind a worked a14. Only replaced it 2 days ago and it still wasn't dead just noisy a hell. When I pulled it out I found that the grub screw had broken allowing the centre pin to float a smash into gears making the horrible noise. I musn't thrash it as hard as some of you guys who seem to kill them in a matter of months, weeks or even days. Hey and im only a youngin. I thought you older blokes didn't kill cars as bad as the young blokes.

Hard launches will kill H150s before to long.
If I know you, you've been caneing the living bejesus out of this car, ever since you got it. It's only a matter of time before it went bang.
Plus, now that you have more grunt, youve got more incentive to give it death. Hence, 90% worn diff+more grunt+abuse=catching the bus.

what? is it really that much more power just a stocky A15 with CAI and full exhaust? or what exactly were u doing when it happened?

nah the flywheel on the a12 has like 1.2cm difference est. in diameter....btw the a15 is out of a c20 vannette....and yes there is a difference with a lighter flywheel on an a15, accelerates alot harder . . .well its not gonig to be gonig anywhere, i blew the diff this evening, couldnt handle the power

the A12 and A15 flywheels are extaclly the same diameter and size, dont matter what you use it in it will fit like most Datsun parts will swap over!
Gawd i cant wait to get my A15 back in, this thing is gona fly!
One quesiton, has many people seen much difference since a lightened flywheel? Like a much more 'touchy' accelerator and revs staying up there for longer??

Good to see another A15 rescued from extinction!

Dave

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soo true, my A15 hammers if i ever put the foot all the way down. once its properly worn-in ill be able to take heaps of cars on the road.
i ended up using the A15 flywheel with no problems (although i did buy a new A15 clutchkit as well), also using 4-speed coupe box.

hell yea it moves now, dragged a 2lt prelude yesterday and it left it behind