Outer Limits 4x4 Board

Can anyone tell me if the engine mounts between the

rb30/tb42/td42 are the same?

My mate's looking at a cheap gq with a dud tb and can also purchase a cheap rb30 or 25 but is curious on the mounts..

Cheers

p.s - im guessing rb30 from a vl will have the same mounts as a gq?

TB and RB = different mounts. TB and TD are the same (Depending on model, there's 2 types of chassis mount, 2 bolt and 4 bolt)