Vibration issues

Stevemil

New Member
Original poster
Joined
Jan 5, 2022
Messages
9
Location
Sparks, NV
Bought this 2002 TJ a couple months ago, it has a rebuilt title but that was no big deal to me as it is intended to be a hunting / offroad low mileage vehicle. Put a Spartan locker in the front Dana 30 and rebuilt the factory Trac-Lok in the rear. Replaced all u-joints front and rear driveshaft. With the front shaft out, there is no vibration, with front in there is vibration over 50 MPH. With shaft installed there seemed to be play in the front slip yoke . I removed the shaft and separated the yoke and found this. Ordered a new entire shaft and am will be happy to get rid of the vibration.
Not sure how a spine can get broken in the yoke but here it is.
Spline.webp
 
Hard to see on my phone. Looks like corrosion and rust caused that?