Hybrid U joint??

[MITCH_89']

After searching, I couldn't find the answer..Question: 89' Blazer with rear 10-bolt, switching to 12-bolt. Is there a special u-joint I will need? Anyone got a part number? In a previous post by me, this was brought up..Thanks in advance /forums/images/graemlins/confused.gif

 

[R72K5]

10 and 12 bolt should have same u joint size, test fit to be sure