Richmond Ring and Pinion - 3.73 Ratio - 30 Spline Pinion - 3 Series - 8.875 in - GM 12-Bolt 49-0039-1 R010003YM 00 inch black ceramic coated

00 inch black ceramic coated 304 stainless steel tips showing off the Flowmaster logo and exits in front of the rear tire

Mercury: Park Lane 66 - 68 7 L Engine

64 mm Diameter

Kits hold torsion arm and stop in place if pinch bolts loosen or breakage occurs

Richmond Ring and Pinion - 3.73 Ratio - 30 Spline Pinion - 3 Series - 8.875 in - GM 12-Bolt 49-0039-1 R010003YM 00 inch black ceramic coatedRICHMOND is the leading manufacturer of professional quality, hi performance ring and pinion sets. For over 80 years, the Double Diamond has signified the highest quality gears in the racing industry! GM 12 Bolt Installation Notes: When replacing a 2. 73 3. 90 ratio with a Richmond Hi Performance Ring & Pinion, the carrier must be replaced with a carrier from a stock 4. 10, 4. 56 or 4. 88 ratio. When installing 5. 14 to 6. 14 ring & pinion sets,