D30 pinion seal replacement - JeepForum.com

 
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post #1 of 10 Old 03-11-2007, 04:27 PM Thread Starter
jeep_chinto
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D30 pinion seal replacement

any one have a write up with part numbers / picuters / tork specs for doing the D30 pinion seal?
iv done a few searches and looked thru the faq's and i see them for the d35 but not the d30 and it looks like most of them are the axel seal not the pinion for the ones iv seen.

thanks

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post #2 of 10 Old 03-11-2007, 05:30 PM
tyco_drone
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Quote:
Originally Posted by jeep_chinto
any one have a write up with part numbers / picuters / tork specs for doing the D30 pinion seal?
iv done a few searches and looked thru the faq's and i see them for the d35 but not the d30 and it looks like most of them are the axel seal not the pinion for the ones iv seen.

thanks
this is what I used when I did mine not too bad of a job
http://www.jeepingsingles.net/tech/pinionseal_p.asp

1997 TJ SPORT
MANUAL | 4.0 L |
HD O.M.E. | 31" BFG | 15x8 AR STIC | P.A. 1" BL |
M.O.R.E. 1" MML | AA sye + TW | JKS uca | JKS lca | JKS t-bar|JKS disco|
Bob Supplee:supplee4wd@sbcglobal.net or (405) 799-8977
www.northridge4x4.com
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post #3 of 10 Old 03-11-2007, 07:57 PM Thread Starter
jeep_chinto
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nice perfect thanks

hrmm no tork specks?
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post #4 of 10 Old 03-12-2007, 12:46 AM
TJforlife
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Whatever you do.....DO NOT OVERTIGHTEN THE PINION NUT. Don't ask me how I know, but it will be fixed by next weekend.
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post #5 of 10 Old 03-12-2007, 11:56 AM Thread Starter
jeep_chinto
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so basicaly i just want it snug?


did you distroy the ring gear?
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post #6 of 10 Old 03-12-2007, 12:05 PM
Laxstar46
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no i doubt he destroyed the ring gear probably just the crush sleeve on the inside which is a very cheap part but a pita to change.
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post #7 of 10 Old 03-12-2007, 08:05 PM
RckyMtnTJ
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Many people count the number of threads visible before they take the nut off. Then they tighten itg back down to that point. Perhaps a hair snugger. No more.


HTH,

98 TJ with some stuff
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post #8 of 10 Old 03-12-2007, 10:26 PM Thread Starter
jeep_chinto
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koo sounds good thanks im probably going to order / pick up the parts hopefully tomarrow
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post #9 of 10 Old 03-13-2007, 04:41 PM
lupinsea
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Praphrasing from the Factory Service Manual:


Removing Pinon Seal
  1. Jack up rig and remove wheels
  2. Remove brake calipers and rotors for more accurate preload measurements
  3. Mark orientation of driveline-to-yoke and remove driveline
  4. Rotate pinion gear 3-4 times then record rotating torque with in-lb torque wrench
  5. Hold yoke still and remove pinon nut, then slide off yoke
  6. Carefully pry out seal

Installing New Pinion Seal
  1. Apply light coating of gear lube on lip of seal and install
  2. Install yoke, new pinon washer (or goop in RTV), and new nut (CAUTION - Don't overtighten nut)
  3. Tighten pinion nut to 160 ft-lb
  4. Rotate pinion with the in-lb torque wrench, torque reading should be the same PLUS 5 in-lb
  5. If reading is low, hold the yoke and tighten pinion nut in 5 ft-lb. increments until rotating torque matches original reading
  6. Install driveshaft with alignment marks
  7. Check/fill gear lube
  8. Reinstall brakes and wheels

- Jay
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post #10 of 10 Old 03-13-2007, 08:20 PM Thread Starter
jeep_chinto
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ok well i did it didnt take off my wheels and break calipers.. or rotate it to get the lb-in settings i made a few lines with a grease pen and just lined every thing up how it was when i took it off and ill find out in a day or so to see if its still leaking or not..

i just snuged every thing down then a little more with a 3/8 ratchet if i need to i can allways go tighter.. allso used some blue locktite on the bolt so it shouldnt losen up
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