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ring and pinion woes... #259229 03/19/09 04:46 PM 03/19/09 04:46 PM
Joined: Dec 2006 Posts: 507 Northern Indiana C capac OP mopar
capac OP mopar C Joined: Dec 2006 Posts: 507 Northern Indiana	Installed new ring and pinion last weekend, and the wear pattern is bad.... How can I remove the bearing off the pinion? I need to shim the bearing. This is a 8.25" rear. '64 390 Valiant Signet Convertable (WIP...)

Re: ring and pinion woes... [Re: capac] #259230 03/19/09 04:50 PM 03/19/09 04:50 PM
Joined: Oct 2005 Posts: 9,065 Milwaukee, WI In_The_Pink master
In_The_Pink master Joined: Oct 2005 Posts: 9,065 Milwaukee, WI	Press the pinion out of the bearing. Take it to a shop if you don't have a press.

Re: ring and pinion woes... [Re: In_The_Pink] #259231 03/19/09 06:25 PM 03/19/09 06:25 PM
Joined: Dec 2006 Posts: 507 Northern Indiana C capac OP mopar
capac OP mopar C Joined: Dec 2006 Posts: 507 Northern Indiana	I have a press at work but I have no idea how to get it off... '64 390 Valiant Signet Convertable (WIP...)

Re: ring and pinion woes... [Re: capac] #259232 03/19/09 06:28 PM 03/19/09 06:28 PM
Joined: Jan 2003 Posts: 25,743 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,743 Rio Linda, CA	You need one of these. 5105181-BearingSep.jpg (153 downloads)

Re: ring and pinion woes... [Re: John_Kunkel] #259233 03/19/09 06:36 PM 03/19/09 06:36 PM
Joined: Dec 2006 Posts: 507 Northern Indiana C capac OP mopar
capac OP mopar C Joined: Dec 2006 Posts: 507 Northern Indiana	There is absolutely no room between the bearing race and the back of the pinion. Unless I need to destroy my new bearing to get to the inside lip... '64 390 Valiant Signet Convertable (WIP...)

Re: ring and pinion woes... [Re: capac] #259234 03/19/09 06:41 PM 03/19/09 06:41 PM
Joined: Apr 2004 Posts: 1,396 Mass dgc333 pro stock
dgc333 pro stock Joined: Apr 2004 Posts: 1,396 Mass	The shim on an 8.25 goes between the race and the case. There are reliefs in the case to tap the race out so there is no need to get the bearing off the pinion. Dave Clement Pembroke, MA 03 PT Cruiser GT Turbo 99 Dakota SLT+ CC 4x4 68 Barracuda sport coupe http://home.comcast.net/~dgc333/

Re: ring and pinion woes... [Re: dgc333] #259235 03/19/09 07:00 PM 03/19/09 07:00 PM
Joined: Dec 2006 Posts: 507 Northern Indiana C capac OP mopar
capac OP mopar C Joined: Dec 2006 Posts: 507 Northern Indiana	Wouldn't the shims have to go behind the 'bigger' race? If so, the shims in the kit were way too small... '64 390 Valiant Signet Convertable (WIP...)

Re: ring and pinion woes... [Re: dgc333] #259236 03/19/09 08:05 PM 03/19/09 08:05 PM
Joined: Dec 2006 Posts: 507 Northern Indiana C capac OP mopar
capac OP mopar C Joined: Dec 2006 Posts: 507 Northern Indiana	OK, everywhere I look I see shims being placed on the pinion itself. I would much prefer punching out the race and doing it that way but I'm kind of confused based on the size of the shims... '64 390 Valiant Signet Convertable (WIP...)

Re: ring and pinion woes... [Re: capac] #259237 03/19/09 08:28 PM 03/19/09 08:28 PM
Joined: Oct 2005 Posts: 9,065 Milwaukee, WI In_The_Pink master
In_The_Pink master Joined: Oct 2005 Posts: 9,065 Milwaukee, WI	Quote: OK, everywhere I look I see shims being placed on the pinion itself. That is correct. There is a special tool used to remove the pinion bearing pictured in the factory service manual, looking much like the one John posted above.

Re: ring and pinion woes... [Re: In_The_Pink] #259238 03/19/09 08:40 PM 03/19/09 08:40 PM
Joined: Dec 2006 Posts: 507 Northern Indiana C capac OP mopar
capac OP mopar C Joined: Dec 2006 Posts: 507 Northern Indiana	Where can I buy said tool? '64 390 Valiant Signet Convertable (WIP...)

Re: ring and pinion woes... [Re: capac] #259239 03/19/09 09:26 PM 03/19/09 09:26 PM
Joined: Apr 2008 Posts: 203 florida 7 74fldart enthusiast
74fldart enthusiast 7 Joined: Apr 2008 Posts: 203 florida	ive seen those on ebay, search for bearing seperator

Re: ring and pinion woes... [Re: capac] #259240 03/19/09 09:58 PM 03/19/09 09:58 PM
Joined: Nov 2008 Posts: 671 Wisconsin USA B Bill MeLater mopar
Bill MeLater mopar B Joined: Nov 2008 Posts: 671 Wisconsin USA	If you have an old bearing, just hone out the ID a little to make it a slip fit on the pinion. When you get the shim setup/contact pattern correct just replace it with the pres fit/new bearing. Saves you from potentially damaging new parts..

Re: ring and pinion woes... [Re: capac] #259241 03/20/09 08:11 AM 03/20/09 08:11 AM
Joined: Apr 2004 Posts: 1,396 Mass dgc333 pro stock
dgc333 pro stock Joined: Apr 2004 Posts: 1,396 Mass	Quote: OK, everywhere I look I see shims being placed on the pinion itself. I would much prefer punching out the race and doing it that way but I'm kind of confused based on the size of the shims... When I rebuilt my 8.25 there were no shims between the bearing and the pinion and there were (3) between the race and the case. The master kit I got also had shims for the pinion. I lucked out and two of the ones behind the race got mine pinion where it needed to be so I never had to go looking for the larger shims. BTW, I mocked up mine with some gauge blocks and a drop indicator to set it for the depth engraved onto the end of the new pinion. I was within 0.002" and when I put it together the pattern was perfect. Also, a lot of pinions will have another number engraved onto the bottom like +.004 or -.002. If the existing one has a similar number you take the difference and adjust the shim pack by that much and you will be where you need to be. Dave Clement Pembroke, MA 03 PT Cruiser GT Turbo 99 Dakota SLT+ CC 4x4 68 Barracuda sport coupe http://home.comcast.net/~dgc333/

Re: ring and pinion woes... [Re: capac] #259242 03/20/09 08:18 AM 03/20/09 08:18 AM
Joined: Jan 2003 Posts: 74,970 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 74,970 U.S.S.A.	Quote: There is absolutely no room between the bearing race and the back of the pinion. Unless I need to destroy my new bearing to get to the inside lip... You are going to destroy the bearing even with that plate , buy a new bearing . I have honed out bearings with a flapper wheel so I could make a test bearing , you'll need about 5 of those wheels to do the job, do it if you think you'll be doing this more than once. Or you can put the pinion in a drill press or a lathe and polish the shaft where the bearing goes till you can just get the bearing to slide on and get it off by hand , I saw that in a tape I got from Richmond on how to set up rear gears . Last edited by Johnahah; 03/23/09 09:46 AM.

Re: ring and pinion woes... [Re: JohnRR] #259243 03/21/09 11:19 AM 03/21/09 11:19 AM
Joined: Dec 2006 Posts: 507 Northern Indiana C capac OP mopar
capac OP mopar C Joined: Dec 2006 Posts: 507 Northern Indiana	OK. Took pinion out and had a local shop pull both bearings on the old pinion and new. Then I made a 'slip-on' bearing out of the old one, good thing I did too. It took 4 times to get a pattern that I liked. Now a new problem has developed: I can't get the crush sleeve to crush! I am using a brand new CP Earthquake impact (625 ft lbs). There is about 20-30 thousanths(sp) of in and out play... so I'm guesing that the sleeve isn't crushing. Any ideas/tricks? '64 390 Valiant Signet Convertable (WIP...)

Re: ring and pinion woes... [Re: capac] #259244 03/21/09 03:43 PM 03/21/09 03:43 PM
Joined: Dec 2006 Posts: 507 Northern Indiana C capac OP mopar
capac OP mopar C Joined: Dec 2006 Posts: 507 Northern Indiana	Anyone? '64 390 Valiant Signet Convertable (WIP...)

Re: ring and pinion woes... [Re: capac] #259245 03/21/09 04:08 PM 03/21/09 04:08 PM
Joined: Mar 2003 Posts: 8,850 Central Coast, Calif. S Snoopy master
Snoopy master S Joined: Mar 2003 Posts: 8,850 Central Coast, Calif.	Who told you to use an air impact wrench to tighten the pinion nut? What instructions are you reading? The FSM tells you to torque the pinion nut to 170 foot pounds of torque and then check the preload. If there is not enough preload, keep tightening until you reach proper preload. If you exceed the proper preload, you will need to replace the crush sleeve and start over. 5109118-8.25AxleSpecifications.jpg (139 downloads)

Re: ring and pinion woes... [Re: capac] #259246 03/21/09 04:10 PM 03/21/09 04:10 PM
Joined: Nov 2008 Posts: 671 Wisconsin USA B Bill MeLater mopar
Bill MeLater mopar B Joined: Nov 2008 Posts: 671 Wisconsin USA	Try a torque wrench, don't think an impact will do it.

Re: ring and pinion woes... [Re: capac] #259247 03/21/09 04:13 PM 03/21/09 04:13 PM
Joined: Jan 2003 Posts: 25,743 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,743 Rio Linda, CA	It's a bad idea to use an impact on a crush sleeve pinion nut, too easy to overtorque and ruin the crush sleeve. Just use a cheater bar and take the nut down slowly. The INTERNET, the MISinformation superhighway

Re: ring and pinion woes... [Re: John_Kunkel] #259248 03/21/09 04:26 PM 03/21/09 04:26 PM
Joined: Mar 2003 Posts: 8,850 Central Coast, Calif. S Snoopy master
Snoopy master S Joined: Mar 2003 Posts: 8,850 Central Coast, Calif.	Did you use the correct belleville washer under the nut and is it correctly positioned, convex side of washer up? From the 70 FSM 5109164-MeasuringDrivePinionBearingPreload.jpg (282 downloads)

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