Richmond Ring & Pinion Set - 3.90 Ratio, 39-10 Teeth, GM 10 Bolt (70-94) M59SC 3-1/4 x 1 in Body

3-1/4 x 1 in Body

The plug gap with a mag is a mere 015" -

to be played back for you in the pits

140 in Long

2005-2005 Pontiac Grand Prix

Richmond Ring & Pinion Set - 3.90 Ratio, 39-10 Teeth, GM 10 Bolt (70-94) M59SC 3-1/4 x 1 in BodyRICHMOND 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 10 Bolt "New Style" Installation Notes: When replacing a stock 2. 56 and numerically lower, the carrier must be replaced with a carrier of 2. 73 or higher. Richmond Gear is famed for their tough and reliable ring and pinion sets. That same level of