I originally used a modified stock bracket but it wasn't smooth with the 833 and made a bit of noise from the cross shaft bushings when depressing the clutch. When I upgraded to the Passon 855 and McLeod 10.95 diaphragm clutch I purchased a kit from Brewers that is specific to adding the 10.5 bell in the narrow early a bodies, I believe it is a mix of A and C body pieces, has the fork and a cross shaft and all the bits to make it a bolt in, it works well, everything lines up and its smooth and quiet.
