Do the A500's have an oiling problem ?

Found a few things on the web about A500 having an oiling problem (early models I think, but not sure) And something about cross drilling a main shaft for increase oiling ?
Does anyone know what/if any oiling mods should/need to be done to an A500 while it's a part ?

ATRA Online

Mopar made upgrades over the years, and the early OD's had problems. In 93-94 they made major upgrades to oil supply and a bigger pump