You made the right choice getting the special bolts, and will soon be saving a half hour of your LIFE every time you remove OR install the driveline. The small 12 point head gives you enough space between the yoke and the bolt to fit a 1/4" ratchet or ratcheting wrench. If you use bolts from the hardware store, they'll have a 1/2" wrench head on them, and you'll be removing 24 threads per inch a quarter turn at at time!
1310, 32 spline, CV yoke with four 5/16"-24 x 1-1/4" 12 point (5/16" head) bolts. Most commonly used in rear on JK, JL, and JT t-cases, and also will fit a TJ Rubicon t-case. This unit has a recess same as the factory yoke for the O-ring seal behind the nut.
Specifications:
U-joint size: 1310, CV
Seal surface OD: 1.940"
Hardware
Diameter and pitch: 5-16"-24 x 1-1/4"
Wrench size: 5/16" 12 point
Why the yoke is great:
FORGED will beat the same part made from billet, or cast...period. The forging process forms the metal grain along the contours, and results is a stronger part. Forging also compacts the grain structure which nearly eliminates failures from voids or inclusions.
FULL LOCK UP is what we call our u-joint cap retention method (see pictures for FULL LOCK UP vs little tang). Almost all yokes have a little tang to retain the u-joint cap. Catch that tang on a stubborn rock, and it breaks off. Then the cap shoots out, and BAM. FULL LOCK UP eliminates this problem by fully retaining the u-joint cap.
