Quote Originally Posted by Bigtonkatoy View Post
I had another diff centre here and went to fit it and no good the bolt holes are different then I found out the two diff centres I've got is out of a ht and hq someone had swaped the diff at some stage because I thought hz was a fine spline but the dates on the centres tell other wise
The 2.78 amd 3.08 centres are attached to the houisng differently to 3.36-3.9:1. The higher ratio centres use all studs but the 2.78/3.08 use bolts for the bottom holes. HZ should normally be 23 spline. It may have had a HQ-HJ diff put in it if it is 10 spline.