Buy 4 quarts. And use synthetic if you can afford it. I does make for a smoother tranny. Sent from my iPhone On Jan 21, 2011, at 2:36 PM, Julie <julie.hey.ho.lets.go@xxxxxxxxx> wrote: > If you change the tranny oil in a '71 Bus how much tranny oil will I need to > refill it? I tend to go crazy and buy too much that I'll never get through, > so if you have an idea of how much a tranny holds, please share your > knowledge. > > Thanks, > > Julie > > >