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Old 05-26-2011, 06:24 PM   #1
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re-gearing myself

Just wondering if anyone has done a ring and pinion swap themselves? I want to save by not going to a shop and paying a mechanic obscene amounts of money.

Do I need anything else besides the actual ring and pinion? Assuming I have a high-lift jack and a standard tool set... what else do I need besides a day to set aside?

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Old 05-26-2011, 06:28 PM   #2
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You will find that not many people do this since its such a precise job. You dont just throw the ring and pinion in and call it good. There is a lot to it with shimming, measuring back lash, making sure you are getting good wear patterns, etc. If things dont get done just right, you may be setting yourself up for premature wear on your gears or other issues.

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Old 05-26-2011, 06:40 PM   #3
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Quote:
Originally Posted by Cons_Table
You will find that not many people do this since its such a precise job. You dont just throw the ring and pinion in and call it good. There is a lot to it with shimming, measuring back lash, making sure you are getting good wear patterns, etc. If things dont get done just right, you may be setting yourself up for premature wear on your gears or other issues.
There is a good write up somewhere. I know my way around a machine shop and
know how to use measuring tools but I would be wary about doing that myself.
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Old 05-26-2011, 06:43 PM   #4
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Ya I was gonna post up the write up but couldnt find it lol. I know a lot of guys that are very familiar with crawlers...and they dont even bother with gearing...they leave it to someone else.
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Old 05-26-2011, 06:47 PM   #5
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Here's some info!

I was told about a great web site that has tutorials on how to do this. I am planning to do it myself.

If I remember right, it's this place:

Randy's Ring & Pinion. How-To Articles and Technical Instructions.
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Old 05-26-2011, 06:49 PM   #6
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^^^ thats it I think, great write up. Almost makes it Seem easy.
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Old 05-26-2011, 08:29 PM   #7
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Dang, I didn't realize it was this involved lol... maybe I should just pay a pro to do it...
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Old 05-26-2011, 10:20 PM   #8
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You need a dial indicator style inch# tq wrench that measures from zero and up in single digits, a dial indicator with magnetic base and a press to get the bearings on.
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Old 05-26-2011, 10:29 PM   #9
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Originally Posted by SilentKoala View Post
Dang, I didn't realize it was this involved lol... maybe I should just pay a pro to do it...
Exactly. My two local 4x4 shops have probably a total of 12 ASE certified mechanics working for them and only 1-2 per shop are trusted to do ring & pinion installations.

I have a garage full of tools, air tools, welder, I do all my own work and some fabrication but I won't tackle a ring & pinion installation. Even an expert experienced ring & pinion tech will spend around six hours setting up two R&P gearsets. Even they don't always get it right and if it's not done correctly and precisely, the new gears will be toast in short order. That happened to me on one of my four R&P installations installed by pros.
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Old 05-26-2011, 10:35 PM   #10
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Exactly. My two local 4x4 shops have probably a total of 12 ASE certified mechanics working for them and only 1-2 per shop are trusted to do ring & pinion installations.

I have a garage full of tools, air tools, welder, I do all my own work and some fabrication but I won't tackle a ring & pinion installation. Even an expert experienced ring & pinion tech will spend around six hours setting up two R&P gearsets. Even they don't always get it right and if it's not done correctly and precisely, the new gears will be toast in short order. That happened to me on one of my four R&P installations installed by pros.
So not only should I not do it myself, but I should also make sure that whoever is doing it is damn well qualified eh? Thanks for the info
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Old 05-26-2011, 11:00 PM   #11
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Get ready to drop over a grand

Cheapest way to go is find axles with the gearing you need that will fit or can fit your jeep with minor modification.
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Old 05-26-2011, 11:30 PM   #12
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I have done a couple on 4x4 trucks. Randy's Ring and pinion is an excellent source for info. That is were I bought my gears from. It does take a couple of tries to get your shim pack right. You can get both a dial indicator and mag base and an inch pound torque wrench for under $100. Much less than the shop well charge you. but be sure your up to the task.
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Old 05-26-2011, 11:42 PM   #13
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Get ready to drop over a grand

Cheapest way to go is find axles with the gearing you need that will fit or can fit your jeep with minor modification.
What's the cheapest way to get axles? All the axles I've seen retail run in the thousands, but if I can find a couple crappy used d44's with the right gearing for the same cost as regearing my stock axles I'd rather do that...
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Old 05-26-2011, 11:49 PM   #14
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Good luck finding any used axles with the correct gearing. You might find some 3.73 or MAYBE 4.10s, but IMO anything but 4.56 or 4.88 is just a waste.

Craigslist is going to be your best bet, but chances are if you can find a regeared d44 your going to be paying a hefty price.
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Old 05-26-2011, 11:59 PM   #15
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Cheapest way to go is find axles with the gearing you need that will fit or can fit your jeep with minor modification.
Thats what I did, I found a ford 8.8 with 4.10s, so I did the tj brackets myself. Total cost for the 8.8 + parts was $485
And I found a d30 from a 4cyl tj that had 4.10s for $350.
Now I just need to swap them in. I know that 4.10s are not optimum for my 4.0/ax-15 but it beats the hell out of the 3.07s I have been running for the last year. I will tackle the regear myself next year when I do lockers
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Old 05-27-2011, 04:51 AM   #16
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Originally Posted by solman

Thats what I did, I found a ford 8.8 with 4.10s, so I did the tj brackets myself. Total cost for the 8.8 + parts was $485
And I found a d30 from a 4cyl tj that had 4.10s for $350.
Now I just need to swap them in. I know that 4.10s are not optimum for my 4.0/ax-15 but it beats the hell out of the 3.07s I have been running for the last year. I will tackle the regear myself next year when I do lockers
Your lucky. The Ford 8.8 is the best option and anything is going to be better than the 3.07's. Good luck!!!

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