Mark Williams GM 12 Bolt High Strength 1350 Pinion Yoke is the perfect upgrade to prepare or upgrade your GM 12 Bolt for high horsepower applications with a 1350 U joint. 

This yoke is made from an American made 4340 forging and machined in house at Mark Williams for precision and exact tolerances. All machining on Mark Williams yokes are done in relationship to the spline pitch diameter to ensure each yoke is symmetrical for balance and smooth operation for unmatched performance. Utilizes the 2nd generation alloy steel cap kit for added strength or standard u-bolts. - sold separately.

Features

• CNC Machined from High Strength 4340 Forged Steel
• 30 spline (factory style spline count)
• Utilizes standard 1350 U joint for added strength
• Features machined 2.187" shoulder for ability to add driveshaft sensor wheel
• Machined to exacting tolerance
• Black Oxide Finish
• Weight 2.18 lb

End of pinion yoke to u-joint center ("B") is 3-7/8"