A ring and pinion set for 1979-82 Fiat 124 Spider 2000 style differentials. Threaded for 10mm bolts. Not for use in 1983-on Pininfarina cars.
Read carefully, this unit's ring gear measures approx. 29mm overall thickness, or 24.5mm measured between the machined areas.
10/39 ratio as factory issued. .
Italian made, exact fit.
Condition: NEW
New and unused.