how much am i looking at for this box and is it an easy install on my RB30DET do i need different bell housings and or different clutch Master cylinder? would manual turbo tail shaft work???

Cheapest route would probably be a GTR 6 speed box and modify it to suit RWD. Wether you use a RWD casing or whatever, that would give you the least amount of dramas.

wouldnt have much change out of 5k getting a T56 behind your RB30. Alot of modification needs to be done. Better off trying to find an R34 GTT manual (i think these are 6 spds) or as LukeVL said modify a GTR box.

5 speed i think OMY, but i may be wrong. just go for an RB25T 5 speed, it is the same as a GTR 5 speed minus the transfer case. much stronger than an MX7, and easier to source to. much cheaper than a T56 im sure. depends whether you want 6 speeds or not i guess. -jimmy

ok kool just looking at some alternative to my MX7 box gears are vert grindy and want somthin that will withstand about 300 rwkw for my next project build up maybe even more.

How about the 6 Speed Getrag? box from a TTSupra? Or a Tremec 6 Speed box?

well the Rb25DET box dont need a modified bellhousing but im guessing the box from the supra will need a moded bellhousing. but wouldnt them boxes be in the $5000-$3500 mark?

Why Bother???