4-Spd Ring Gear 64T 3.76 (Fiat X1/9, 128, Yugo) - OE NOS

This is a Factory OE 64T ring gear as originally fitted to Fiat 128 and Yugo, but can be used in any 4-Spd Fiat X1/9 (1974-78) transaxle with matching 17T pinion shaft (PN 4371720) to result in a 3.76:1 final drive ratio.

Also used on the 17/64 5-Speed Yugo set-up.

Very difficult to find.

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