Master Cylinder question Series 2a

Hi all,

Just bought a 1969 Series IIa and new to the forum.

After fitting a re-con gearbox, I've moved onto the next thing, the brakes.

I've just purchased a new master cylinder for it which I belive is correct for the year, but does not match the one that seems to be fitted

The one I bought was a Series II/IIA (Early) 88-inch SWB - CB Type (Large nut at the end) Non-Servo.

However, on inspection, it seems to be fitted with a Series IIA (Late)/III 88-inch SWB to June 1980 - CV Type Non-Servo.

I've got the felling the answer to this will be "no, you can't.." but ....

Can I fit the older type cylinder I've just bought or am I going to run into heaps of issues and make the landy unsafe?.

Any help from your own experience you can give me would be greatly appreciated!

Cheers!

Note sure if you can mix and match bits but i wouldnt risk it.

Yes, I agree, not a good idea on reflection. Just been studying the expanded diagrams of cylinders in the Haynes Manual. Didnt take long before I ordered the CV type.

Anyone want to purchase a brand new, unused CB type Master Cylinder for an early SWB Series ii?