View Full Version : ring and pinon replacement
Alrighty, how hard is this. What should I do while I am doing this, replace seals, bearings, what?.
I'm doing this on a front D 44 amd a rear M 20.
thanks for info
Kaiserjeeps
08-22-2003, 07:40 AM
Well lets see, You need bearing race drivers for R and R of the pinion races in the housing (a brass drift will work fine), a mag mount dial indicator for backlash checks, calipers to measure your shims, contact paste diluted (by you) with paint thinner or laquer thinner (GM dealer), A small hobby paint brush to apply contact paste, bearing splitters for carrier bearing removal, bearing press to put back on, inch pound torque wrench with adapters and right sockets to check final pinion preload minus pinion seal, FT pound torque wrench for bearing caps and pinion nut, Large yoke holding tool (angle iron with box welded on end) to hold the yoke while you torque it down. It's sensitive work. When I first started doing this I toasted a couple of gear sets from improper setups. The contact pattern has to be good on both sides of the tooth. The preload has to be in. I have a D44 with wasted pinion bearings from to much preload from listening to a friend who convinced me they need to be tighter than spec. And the best thing you can get is a good manual telling you whats up. It should have multiple pictures of contact patterns and how to interpret them. If you have never done it, call a friend who has and or pay to get it done. Gears are not cheap. I think I heard somewhere that Randys ring and Pinion has a neat installation guide. You might check. Hope this helps. I hope I am not forgetting anything. It's been awhile although I'm about to do an OX locker in the back of my baby jeep. To bad I don't live in Seattle anymore. I have all the stuff I mention. Good luck and tell us how it goes....Kaiserjeeps.....(Al T)...
Stuka
08-22-2003, 07:48 AM
It would help to know how to set up the gears smile.gif Which would really require somebody who has done it before. Trying to do it from a book without actually having seen it done would be a pain. If you are changing gear ratios you may also need different carriers. I also advise a press for the bearings, and a case spreader would be handy if you want to get the bearing preload just right.
it is cheaper to just get a shop to do it(unless you already have all the special tools.). I called around and got a price quote for $125 4x4 shops lots of times will rip you off.
I have a brand new dana 44 master install kit form sierra kits if you want to get that too.
Zac
The Donzi
08-22-2003, 09:53 AM
Just found this...
http://www.randysringandpinion.com/yukon-instructions.pdf
fulsizjeep
08-22-2003, 10:11 PM
I changed my GW axels from 2.72 to 3.73 last year with a Lockright locker in the back and had some help from a friend who had done a few of these. I wouldn't do it without help from someone who has been there before. Since the axels had over 200k on them, I replaced all the bearings and seals as well. It was a worthy project. Since the brakes were all shot and the Randy's kit had the wrong seals for the front axel, the project lasted longer than I had expected. We did it in about 20 hours over a Saturday and Sunday with one trip to town for parts.
Oracle
08-23-2003, 11:29 AM
I did this. Just the anxiety over wondering if you got it "right" is worth taking the truck down to a good shop and watching the guy do it. Find a friendly wrencher who will let you watch and explain as it goes. A lot of the satisfaction in fixxing up these trucks is the piece of mind knowing that the repairs were done and were done right. Not having that confidence makes every venture out an excersize in sweating.."what if it wasn't right and breaks"....
Like I said, for the first timer, best to listen, watch and learn.
jmho
oracle
Chevelleguy
08-23-2003, 11:33 AM
If you have to ask, you should take it to a shop.
Cecil14
08-23-2003, 12:47 PM
Originally posted by chevelleguy:
If you have to ask, you should take it to a shop.As many times as I've heard that it is most often not true. I agree setting up gears is not a job to be taken lightly and if it's your first time I would also advise finding someone to learn from. However, if you don't ask how can you learn? Honestly I've learned most of what I know from just doing stuff. It's not always the best aproach but let me tell you, when you're done you know what's going on, especially if something DIDN'T go right. ;)
Good luck,
Anthony
Chevelleguy
08-23-2003, 01:43 PM
I stand corrected.
thanks for the info gents,
I can call a guy over here that said he has done a few gearing changes. There is also a 4x4 shop close by but I don't know if they do anything like this
Kaiserjeeps
08-23-2003, 06:30 PM
Isn't Randys Ring and Pinion in Everett or was it Bothel? I don't know if they are pricey, but you won't have to do it again. I learned the hard way. It just cost me money I could have put somewhere else. Good to try and learn how to do a gear setup though. Just ask alot of questions and read up. Hope it works out well for you....
2ndtimearround
08-23-2003, 11:31 PM
By the how-to video :D :
http://www.technicalvideos.com/videos/differential.phtml
Lawrence
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