4-Spd Differential Carrier Assembly w/Ring and Pinion 17/64 - 3.76 (Fiat X1/9, 128, Yugo) - OE NOS

This is a hard-to-find Factory OE Yugo or 128 17/64 (3.76) ring and pinion with full differential assembly applicable to all Fiat X1/9s, 128s and Yugo with 4-speed tripode-style transmissions.

Please note:  DIFFERENTIAL BEARINGS ARE NOT INCLUDED. 

If you love your X1/9 or 128 but hate buzzing the engine on long highway trips, this unit is for you!!!

This will drop your transaxle gear ratio from either 4.42 or 4.08 to 3.76, enabling you to maintain 75mph at around 3200 RPM!!

Save your ears, engine and gas at the same time and turn your X into a comfortable long-distance cruiser.


Condition: OE NOS
Original Equipment New Old Stock
New and Unused.