Richmond Ring & Pinion Set - 3.55 Ratio, 39-11 Teeth, GM 12 Bolt H778003L Replace original X1 Series regulator

Replace original X1 Series regulator internals with the conversion kit of your choice (Part #

It's a no holds barred run as high as 9000 RPM where for over 1

Bert/Brinn standard rotation starters or Quarter Master reverse rotation starters

Super Start Automatic Starting Line Control For Activating A Throttle Stop Prior To Staging

Universal - fits multiple angled spark plug boots 1

Richmond Ring & Pinion Set - 3.55 Ratio, 39-11 Teeth, GM 12 Bolt H778003L Replace original X1 Series regulatorRICHMOND 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,