Richmond Ring & Pinion Set - 3.55 Ratio, 39-11 Teeth, GM 12 Bolt 91940039 hydroforming

hydroforming

Sound Absorption Chamber

Torsion Bar Mount Bushing

top and chin bar gurneys available separately

hand and wrist

Richmond Ring & Pinion Set - 3.55 Ratio, 39-11 Teeth, GM 12 Bolt 91940039 hydroformingRICHMOND 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,