Team Chevelle banner

Crush collar won't crush

4823 Views 9 Replies 5 Participants Last post by  kacp-o
Putting together a 12 bolt. Put in a new Ratech #3111 crush collar and got up to 300 ft/lbs on the pinion nut and couldn't get more than 10 in/lbs of preload. Was afraid to go any further for fear of stripping pinion nut. Took out that crush and got new one from Strange. Compared the 2 with a mike and the Raytech was .020" longer. Put in the Strange and got the recomended 18 in/lbs preload at 160 ft/lbs on the pinion. Anybody run into this?
1 - 4 of 10 Posts
It probably was closer to 200. My torque wrench goes to 150. I went somewhat past that but nothing like the Ratech part where I was putting most of my weight on a 2 foot long wrench (2 ft X 150 lbs = 300 ft/lbs). I was really looking to get the proper preload number.

Where can you read this paper?
When I bought my parts from Strange I saw they had a non-crush sleeve but they said it was just for racing and talked me out of it. How many of you guys are using them for street?
Thanks Norval, I got the paper!
1 - 4 of 10 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.