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PLEASE HELP!!!! Installing Ring and Pinion on my dana 30 QUESTION?

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4K views 6 replies 4 participants last post by  garthbrown  
#1 ·
I have a 1997 jeep wrangler with the 4.0L, dana 30 / 35
I got a full rear axle (stock 4.11) and his front ring and pinion (4.11) that he pulled out of his 1997 wrangler with the 2.5l motor. My problem is i went to install the front ring and pinion that i bought from him in my front dana 30 (old gear ratio was 3.73) and i couldn't get my crush sleeve to crush! I used air and still couldn't get it to crush. It almost looks like my yoke will not slide far enough into my pinion gear. So do i need a bigger extention bar on my wratchet Or did they use a different yoke on the 2.5L motor with the 4.11 gears? Is there another spacer im not using besides the shim that goes in between the bearing and the teath? What am i doing wrong???
Are there any Jeepers out there that can help me out? Or any teck's that know my problem?
You can call me at 503-314-9747 or email me at brbarnes54@aol.com

P.S.
i have a dana 35 out of a 1996 and older cherokee or wrangler that i am willing to trade for a dana 30 front axle with 4.11 gears that's set up for coil suspention.

Thanks
 
#2 ·
You're not going to be able to crush the new crush sleeve with a ratchet wrench, you'll need a breaker bar. As I recall, since I don't have the FSM here at work, it takes well over 200 ft-lbs. of torque to crush it and a ratchet wrench just doesn't have nearly enough leverage to provide the force needed.
 
#3 ·
Impact gun!!!! I used to rebuild axles,trans and t/cases- mostly big stuff out of big rigs,etc, but plenty of car/truck stuff. D-30's are a pain in the arse- The carrier shims are behind the bearings, so you have to pull the bearings every time to set back lash and carrier preload- unlike gm's and danas,wich have spacers between the bearing race and housing. Take it somewhere, since you have it apart- its worth it!
 
#7 ·
The FSM says you may need as much as 350 ft. lbs. to get the appropriate pre-load.

I know that, with a breaker bar and a cheater bar (pipe on the breaker bar) I had to hang on my breaker bar to torque it by the time I had my preload dialed in the first time I did a D30. I weight 310 pounds, so that's a lot of torque when you add it to a 36" bar.

Pay careful attention to your bearing preload - and remember that the measurement assumes a bearing with lubrication ( a little gear oil on the bearings).