Thx Eric and Thx Mike.
Felix, that kit has gone up a bit, its 750 $aus now plus shipping. I got a quote of about $300 or so from Marks on shipping a different kit over to the US so it's going to be closing on a grand by the time its on your doorstep. I like Marks TH400/4L80e to LT230 set up but I am not as keen on this one. They retain the LR bell housing and their adaptor converts to the GM SAE pattern. There is so much difference between the two styles I would be concerned at its durability. Because they retain the smaller LR bell housing, they can only support the smaller GM flywheel and that can be the cause of common starter issues. They say the bell housing has to be modified to accept the GM starter as well. So it's not a drop in and go set up. Finally the LR R380 is only supposed to be rated to accept up to 280 ft lbs of torque and many of the engine set ups this will allow can exceed that, some of them quite considerably. I would be concerned again by the long term durability of the trans.
IMHO the solution that Eric and Mike are using with the 4L60e bell housing is a lot stronger and cleaner.
Ian
before i chose the gm bell housing i vent true many options , and none were as solid as using 4l60e housing bolt on strong no modification needed. you can even use 4l80e trans, and make adapter or buy from marks to work with LT230 . 4l80e is one strong trans no joking around ,
the idea behind what i did is to make as less modification as possible, so knock on wood you break down far away from home, you can get parts for it that are made factory .
for example the set up i have now is made of all factory parts available at any part store ,
and making the adapter for zf22 or zf24 makes it very much all factory .
Eric