H151/ R151 input shaft tube OD (1 Viewer)

[Gengis]

Can anyone please help with the OD Outer diameter of the tube which covers the input shafts of these two gear boxes. I am changing from R151 to H151 and I need to know if the old clutch bearing will fit.
I don't have the new box yet and the other is still in the vehicle, but I need to get my ducks in a row for the big swap.
G

 

[mudgudgeon]

I don't believe they are close to the same. A search on Excedy clutch website or similar will give you bearing dimensions

 

[Gengis]

It's actually all OK thanks Mud, the FZ79 and FZ71 vehicles came out with the H151 box and 275 mm clutches, and the clutch pressure plate is even the same part number as the HZ, as is the fork, pivot ball and bellhousing width, so, on paper I'm golden,, i'll just order a clutch kit for the FZ with a 275 mm clutch and stop trying to mix and match.

It's actually working out well as I am putting a H151 into a 76 which has a R151 and I really dont want to "convert" anything if i dont need to, so an off-the-shelf clutch kit is good. It may just be the
propshafts which need conversion, and even then I'm not sure about that.