D30 pinion bearing install problems - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 12 Old 02-10-2017, 02:09 AM Thread Starter
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D30 pinion bearing install problems

Hi all,

Jk 2012 2.8 CRD and I have problems to install the outer pinion bearing from outside ,because I couldn't get enough threads with the nut to pull it on
so it is mandatory to use the Miller tool 8112/8109 or i can use pipe on the bearing and tap it down the shaft of the pinion ?
thank you

Giacomo
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post #2 of 12 Old 02-10-2017, 02:57 AM
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It sounds like you are referring to the inner bearing, as the outer is not a press fit. You will require a shop press to install the inner bearing. I certainly would not use a pipe and hammer.

2010 JKU. 3.5 RK Flex, 37" Nitto Trail Grappler MT, Method 105's. Poly Drag link, Fusion 4x4 Tie Rod, DIY Hydro Assist, Ultimate Dana 44 Front, Rubi 44 Rear. Ten Factory Chromoly Axles, EVO RockStar Skids 5.13's, VKS Shorty V2 with Warn HS9500i, EVO rear D-ring mounts, VKS Prerunner Sliders, Synergy Cage
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post #3 of 12 Old 02-10-2017, 03:51 AM Thread Starter
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Thank you KJV
no ,it is outer bearing the one facing the drive shaft

Giacomo
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post #4 of 12 Old 02-10-2017, 10:12 AM
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Did you try putting it in the freezer for 30 minutes or so, helps out a lot and should slide on. Not sure if I'm understanding correctly or not. I don't recall having any problems when I did mine.

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post #5 of 12 Old 02-10-2017, 01:23 PM Thread Starter
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Thank you Sgo70
" Did you try putting it in the freezer for 30 minutes or so " bearing or pinion ?

Giacomo
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post #6 of 12 Old 02-10-2017, 01:47 PM
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Quote:
Originally Posted by giacomo.m View Post
Thank you Sgo70
" Did you try putting it in the freezer for 30 minutes or so " bearing or pinion ?

Giacomo
Is it the outer race that won't go into the case?
Or is it the inner race that won't go onto the shaft?

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Last edited by ronjenx; 02-10-2017 at 01:50 PM.
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post #7 of 12 Old 02-10-2017, 03:24 PM
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Yea sorry, I assumed it was the bearing that wouldn't go into the case. For this the bearing goes in.

If it won't slide on the shaft then the pinion goes in. The cold will just shrink it slightly.

Sean
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post #8 of 12 Old 02-11-2017, 12:48 AM Thread Starter
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It is the bearing that won't go onto pinion shaft

Giacomo
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post #9 of 12 Old 02-11-2017, 08:08 AM
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The outer bearing should slide on with very little force. Hold the pinion gear and try pushing the gear on. It should not require any type of hammering or beating. Verify the part numbers on the bearing.

2010 JKU. 3.5 RK Flex, 37" Nitto Trail Grappler MT, Method 105's. Poly Drag link, Fusion 4x4 Tie Rod, DIY Hydro Assist, Ultimate Dana 44 Front, Rubi 44 Rear. Ten Factory Chromoly Axles, EVO RockStar Skids 5.13's, VKS Shorty V2 with Warn HS9500i, EVO rear D-ring mounts, VKS Prerunner Sliders, Synergy Cage
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post #10 of 12 Old 02-11-2017, 01:33 PM Thread Starter
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" It should not require any type of hammering or beating. " in theory but if not you beat him there's no way to get him in the pinion
Bearing part number correct

Giacomo
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post #11 of 12 Old 02-13-2017, 03:08 PM
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Did you try freezing the pinion? Should be enough otherwise I'd double check the part number on it.

Sean
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post #12 of 12 Old 02-14-2017, 06:39 AM Thread Starter
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Thumbs up

Thank you all
problem solved, just beat a little while someone holds the bearing on the other side

Giacomo
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