Dennis- All I can tell you is be careful. It's highly unlikely that your 1/2" gun has enough gonads to pull that nut down properly. I have successfully used a press to start the crush, then dropped it onto the pinion. It does make for more work, but your gun should be able to tighten it down then.
If you find that you're not getting anywhere with it, it may be wise to take it to somebody who does it frequently. I just had to replace my pinion bearings this week because I didn't have the nut down tight enough last time I swapped out the gears. I should have replaced the gears as well due to an odd pattern, but I want to make a few passes on them first with my new engine to baseline it, so I'll be tearing back in there before too long myself. Devin ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[email protected]> Sent: Saturday, April 08, 2006 9:23 PM Subject: [Chevelle-list] Chrush sleeve question. > I'm changing the ring and pinion in my 68 SS.I'm going from 308 to 355 > gears. I had to add 10 mill to get the right pinion depth. My old chrush > sleeve was 2,209 plus a 48 mill shim. The new chrush sleeve is 2,305. If > my math is correct,I have a 48 mill differance. I'm having a hard time > getting the crush on that new sleeve. I have a 1/2 drive I.R. impact but > it won't take it up. I also have a 3/4 I.R. impact. I'm thinking that if I > use the 3/4 drive. I might strip out the threads on the new shaft. Have > any of you guys ran into this problem? Is 48 mill to much to try and take > up and still maintain a pinion bearing preload of 20-30lbs? also these > are new bearings. Thanks for any help ahead of time.....Dennis > > >
