Ok just found out the ratios are not that good for the T series diff
so from 3.9 to 4.3 available so its measures 6.7 inches unlike non
4age diffs which are usually 6.38 inches on the Ke70 corollas but earlier
celicas and corolla t18 have supposedly the 6.7 inch one which makes them
a hitachi H170 or the same as the Suzuki Samurai, Sierra and Jimny Hitachi
unit so there could be a way to just use the LSD unit and keep datsun ratios?
or probably even better get hold of a Suzuki Samurai LSD centre from a
suzuki specialist in the states and run the suzuki 5.12 from the vitara front
diff centre into the sierra housing or perhpas H165 datsun housing.

Seems HItachi made alot of diffs for different companies but info is scarce
unfortunately however seems like most Banjo style diffs are Hitachi from Jpn