Richmond Ring & Pinion Set - 3.90 Ratio, 39-10 Teeth, GM 12 Bolt Headset Microphones 5"-12" deep

5"-12" deep

These new products are the first of the Vintage Series family of die-cast aluminum dress up products featuring a classically inspired finned design and a retro-style Holley script brandmark

3/16 in Keyway

Fits standard tire gauges up to 3

Pull Down Harness W/Velcrow Latch Guard

Richmond Ring & Pinion Set - 3.90 Ratio, 39-10 Teeth, GM 12 Bolt Headset Microphones 5"-12" deepRICHMOND 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,