difference between an R154 and W-series box

[YeMs]

hey all, just wanna know how to tell the difference between an R154 and W series gearboxes.

[postfach]

the r154 is much wider, the slave cylinder mounts inside the bellhousing


R154 on the left, W box on the right

[blackmk3]

The r154 is a much stronger gearbox designed to handle more power than a w series box, research its everyware

[YeMs]

yeh i know that the r154 is stronger. i just wanna know the physical difference so i can tell if the box im buying is actually the real deal.

thanx postfach for the constructive reply.