Product Description
Differential ring gear and pinion
FIAT Spider 2000 1980-1982. September 1979 production date to Spares Number 1966226 (Spares number located at bottom of firewall VIN tag)
3.9:1 ratio
Ring gear is ~28mm thick and has 10mm diameter bolt holes
This ratio was used in manual transmission Spiders
Fits rear loading differentials
