old_and_new_style_flanges.jpg

Above link is the old (left) and new (right) style flanges.  Note that the old flange has no seal diameter like the new one.

clearancing_for_100mm_flange.jpg

Above link shows the clearancing that I had to do to fit the 100mm flange onto an FF tranny.  It’s at the top of the flange as shown.

old_ff_converted_to_100mm_flanges.jpg

Above link shows converted 020 tranny (from old style 90mm flanges to 100mm flanges). Just replace the old seals with the green sleeves as shown, and use the newer style seals.

The old seals are much smaller in diameter than the new.

Note: old 90mm flanges used the smaller seals, new 90mm flanges and all 100mm flanges use the larger seals (and those trannies had one green sleeve). Only a converted tranny uses two green sleeves.

Note: the pictured tranny is not mine - I did the conversion for a friend in a hurry. If I had rebuilt it, it'd be purt' near spotless.

HTH

Ron

rapieper at yahoo dot com