Chevrolet 12-bolt Rear end 1965-72. 8 Inch8 Inch5-inch ring gear.

Bolt hole diameter .437 inches. Spacer thickness .305 inch to .315 inch.

Mr. Gasket stamped ring gear spacer is precision Blanchard ground to ensure parallel surfaces for perfect alignment. Kits are complete with spacer and bolts.

• This spacer should only be used when using the Series Four Gearset on a Series Three Carrier. See image 2 for more information on the differences between the Series. The thickness of this spacer, .305 Inch-.315 Inch, coincides with the difference between the series 3 and 4 Carriers. The Series 2 Carrier, being only a little over 1/2 inch thick at the ring gear flange, is not suitable for mid to high HP with slicks.
• Includes (12) 3/8 Inch-24 x 1-1/8 Inch Long Bolts
• High Quality Grade-8 InchBolts w/ Black Oxide Coating
• Ring Gear Spacer Thickness .305 Inch-.315 Inch - High Carbon Steel - Blanchard Ground to Ensure Parallel Alighnment
• Bolt Hole Diameter .437 Inch
• Allows the use of a Series 4 Gearset on a Series 3 Carrier

Details:

• Emission Code: 5
• Finish: Bare
• Material: Steel
• Warranty: Manufacturer's Limited 90 Day Warranty