The datsun 1500 / 620 ute(the model before the 720) diff is a perfect fit into the back of a 1200 with minor alterations.Its physicaly bigger (big axles big gears big evreything.) The length is spot on, the spring plates(the ones factory welded to the housing) are exactly spaced to fit the 1200 leaf springs. I know a fella who has already done his & the conversion looks quite simple.
It seems to be more than strong enough , He's running a1200 ute with a twin turbo rotry ,3.6:1 gears and 15" wheels producing abuot 350 +hp at the rear wheels(its awsome!!!) and the 1500 diff's still hanging in there.
Mod's to be done;
* Restud the axles & drums to suit (1500 utes use 6 stud rims). Check drums fit inside rims(may not fit inside 13" rims).Maybe a disc conversion is possiable??? ,who knows.

* Change tailshaft rear flange coupling to suit.(and maybe shorten) ???
Use the 1500 ute U bolts and spring/shock plates.

* SOMETHING TO THINK ABOUT NEXT TIME YOU HAVE NOTHONG TO DO ....HEY?*

what in the hell is a 1500 ive never heard of one are they rare in sydney?

I guess that they would be rare in Sydney, In New Zealand they have pretty much all dissolved into flakes of rust!

DATSUN 1972/79 1500 620 1 TON UTE

http://www.geocities.co.jp/MotorCity/8227/index.html

This will show you enough. These are still quite common. I see a different one every couple of days. They certainly haven't disappeared. But getting spares like diffs would be hard.

Chris

This site gives the information on what diff ratio is in each model 4.111 -> 4.875.

http://www.zipcon.net/bleach/pages/620gears.html

thanks for dat second link, very handy

Hi,

Thanks for that info, we still have some of those here in Portugal.
Do you know any LSD that goes into that diff?

daniel

sweet as dude, am going to look for one of those diffs next week, maybe a 4.11...

bit off topic here....but that dudes site has inspired me to put my old computer into the datto...

was going to hafta be done eventually anyway, because i start my apprenticeship soon, as an auto electrician, and my main project from then on will be to have a fully electronic datto (not engine). Everything will be adjustable from the cockpit, from engine timing to car stereo. BIIG project, but it'll be fun :)

yea thats what i wanna know can u bolt anything else in there??

dammit i had two of those utes and gave them away damit and comeing to think of it thay would sure stand up to some hp there a big diff makeing a hand brake cable set up on one would be tricky tho