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  • Part #: M92GM10373
  • Mfr #: GM10-373
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1970-1981 Pontiac Firebird Ring and Pinion - Motive Gear - Direct fit

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  • Fitment Info
MOTIVE GEAR STOCK PERFORMANCE SERIES RING AND PINION -- For GM-style axle with high ratio differential case; 3.73 ratio; 8.5 in. ring diameter; 1.626 in. pinion shaft diameter; 41 ring teeth; 11 pinion teeth; 30 pinion splines; 10-7/16 in. x 20 left-hand threaded bolts; Made of 8620 steel; Light duty; CNC-machined and heat-treated for excellent OE quality; Ideal for on and off-road applications.
  • Product Fit: Direct fit
  • Quantity Sold: Kit
  • Anticipated Ship Out Time: 1-2 business days
  • Ratio: 3.73
  • Fit note: Rear 8.5 in.
This product fits the following Pontiac Firebird submodels
  • 1981-1981: Base; 8 Cyl 4.3L;
  • 1981-1981: Esprit; 8 Cyl 4.3L;
  • 1981-1981: Formula; 6 Cyl 3.8L;
  • 1981-1981: Formula; 8 Cyl 4.3L;
  • 1980-1981: Base; 6 Cyl 3.8L;
  • 1980-1981: Base; 8 Cyl 4.9L;
  • 1980-1981: Esprit; 6 Cyl 3.8L;
  • 1980-1981: Esprit; 8 Cyl 4.9L;
  • 1980-1981: Formula; 8 Cyl 4.9L;
  • 1980-1981: Formula; 8 Cyl 5.0L;
  • 1980-1981: Trans Am; 8 Cyl 4.9L;
  • 1980-1981: Trans Am; 8 Cyl 5.0L;
  • 1980-1980: Base; 8 Cyl 5.0L;
  • 1980-1980: Esprit; 8 Cyl 5.0L;
  • 1971-1979: All Submodels; All Engines;
  • 1970-1970: Base; 6 Cyl 4.1L;
  • 1970-1970: Base; 8 Cyl 5.7L;
  • 1970-1970: Base; 8 Cyl 6.6L;
  • 1970-1970: Esprit; 6 Cyl 4.1L;
  • 1970-1970: Esprit; 8 Cyl 5.7L;
  • 1970-1970: Esprit; 8 Cyl 6.6L;
  • 1970-1970: Formula; 8 Cyl 5.7L;
  • 1970-1970: Formula; 8 Cyl 6.6L;
  • 1970-1970: Trans Am; 8 Cyl 5.7L;
  • 1970-1970: Trans Am; 8 Cyl 6.6L;