i'm doing a 2jzge swap in my sc400 will i need a different driveshaft or will mines bolt back up or will i need to get a custom driveshaft made thats what i was told...

 

You're putting in the sc300 stock in-line 6 2jzge? Or are you swapping in the 2jzgte twin turbo?

assuming you're putting in the 2jzgte twin turbo; you'll need a

soarer DS
or
sc300 front end at least to mate to the sc400 DS you already have

Cheapest is buying the sc300 driveshaft. If someone will sell you just the front end, go with that, it's really all you need.

Use search next time - I KNOW this one is easy to find!