Sapporo... 2.6 4 cyl. What trani?

My buddy has a '78 Sapporo.
2.6L 4 cylinder
He just got a trani leak that he's upset about..Maybe Front Seal

What trani is in that car? is that a 904 version for a 4 cyl?

I believe it is actually a light duty 4cyl version of the 904 in that car.

The trans is called a baby 904..
Bands, seals and other parts are readily available...

Just my $0.015..

Thanks