This is a ZF transaxle 5DS-25-0 as used in the original Ford GT-40's. It's a 4 bolt case with external shifter linkage and aluminum side bearing/ axle retainers. It has a 4:22-1 final. No signs of case repair or damage. Unit is complete including the drive flanges but less the bell-housing. The top cover has the mounting ears.I can e-mail pictures.