I’ve started stripping the Cosworth T5 gearbox as it had play in the input shaft (even though it didn’t when it went in a few miles ago!) and a very noisy fifth gear. Likely it’s just bearings that need replacing.
One of the bearings is a Timken 28577 / 25821 – the rest I’ll have to look up. The input shaft bearing is new anyway, I changed that when I replaced the input shaft.
EDIT: The SKF Part number for this bearing is 25877/2/25821/2/Q
Anyway, the gearbox is partially apart. Next week I’m off work, so I’m probably going to get on with it then – I really want the car back together! 🙁 Only getting to drive it a few miles sucks!!!!