Ford C6 Slip Yoke 1350 31 Spline Extreme Duty 4340 - Quick Release

Mark Williams Extreme Duty transmission slip yokes are machined from high strength 4340 steel and thru hardened in house for ultimate strength. All machining is done in relationship to the spline pitch diameter to ensure each yoke is symmetrical for balance and smooth operation.  Rapid release yokes allow the driveshaft to be disconnected at the transmission rather than at the pinion. The cap design prevents over-tightening and possible damage to the u-joint cups. Care must be taken not to mix u-joint caps and maintain indexing after shaft is balanced. MW-built driveshafts with these yokes have identifying index marks. Applications Ford C6 Automatic Transmission Ford Top Loader 4 speed Transmission Features Quick release ujoint straps for easy maintenance  Machined from 4340 high strength steel Thru hardened for ultimate strength Machined in relationship to spline for perfect balance and smooth operation 31 spline Uses 1350 series U joint 1.6845" diameter slip section End of yoke to center of ujoint, "D" = 6.125" Includes 39075 cap kit Made in the USA     Rapid release yokes allow the driveshaft to be disconnected at the transmission rather than at the pinion. The cap design prevents over-tightening and possible damage to the u-joint cups. Care must be taken not to mix u-joint caps and maintain indexing after shaft is balanced. MW-built driveshafts with these yokes have identifying index marks. Manufactured from high strength 4340 steel. 100% machining creates a perfect balanced part. (NOT ACTUAL PHOTO) *Note* Our previous design rapid release yokes had threaded holes in the ears for cap attachment, and were sold with standard caps. New style rapid release yokes have a through hole in the ears for cap attachment using the 2nd Generation alloy steel cap kit for added strength. Uses 1350 series U joint. Fits C-6 and Toploader trans. "D=6-1/8" Weight