I cracked all the teeth on my front ring gear and found that http://jantzengineering.com/ sells a Jana 76 kit to make the Dana 70 carrier and bigger gears fit in the Dana 60 housing.
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CK5
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Dana 70 gears in a Dana 60 front axle
- Thread starter GreenieK30
- Start date
Here is the Dana 60 and Dana 70 parts side by side.
Dana 60 ring gear is 9.75" dia
Dana 70 ring gear is 10.25" dia.
The Dana 70 pinion has larger teeth and a different radius where the inner bearing shoulder is.
Dana 60 ring gear is 9.75" dia
Dana 70 ring gear is 10.25" dia.
The Dana 70 pinion has larger teeth and a different radius where the inner bearing shoulder is.
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I had to grind a little on the inside of the housing for the 10.25" diameter ring gear to clear.
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Here is the Jana 76 kit, 4.56 gears and Detroit locker all finished up
Now the 35 spline shafts are the weak link 
If anyone is interested in the Jana 76 upgrade, Carl is the guy to talk to at Jantz4x4 1-360-639-6203.
If anyone is interested in the Jana 76 upgrade, Carl is the guy to talk to at Jantz4x4 1-360-639-6203.
Nice work! Is that stronger than D60 gears? What was the reasoning behind that! Looks good!!!
The Dana 70 gears are about 33% stronger and you keep the ground clearance of the smaller Dana 60 housing.
just great 
more money i need to spend on my ultimate 60 build up.
more money i need to spend on my ultimate 60 build up. 
I've been watching his thread on Pirate since it start, way cool stuff. If I hurt my 60 gears I'll definitely be stepping up to 70 parts.
Kjunky5
1/2 ton status
I saw this installed in Crawl magazine. I was wondering about doing this myself. I've already got D70 gears..
.....D70HD
.....D70HD 
Easy install then?
Been looking at these since they came out. Looks pretty normal and easy just a plain flat out good idea for those running bigger than 44s.
Been looking at these since they came out. Looks pretty normal and easy just a plain flat out good idea for those running bigger than 44s.
K5dreamer
1/2 ton status
LOVE this. im a huge fan of parts compatibility on a rig. If i could have identical front and rear driveshafts id be all over it.
I think ill definatly be looking at doing this when i regear my axles to 4.88 and drop lockers in em. thanks for the thread. btw, any more pics of that sick rig?? that thing is mean lookin.
I think ill definatly be looking at doing this when i regear my axles to 4.88 and drop lockers in em. thanks for the thread. btw, any more pics of that sick rig?? that thing is mean lookin.
this is an awesome upgrade... 60 front with 70 gears and a 70 both stuffed with 7.17 gears would be a tough set of axles to break with a stupid low crawl ratio... Thanks for the link Corey that's some cool sh!t...
wasted wages
1 ton status
I see you run 4.56's
any limit on the ratios that will fit the case ?????
Are these the parts you recieved?
Which bearings are you swapping?
What is the large spacer for on the botom left?
I have been thinking about this swap for a couple months now,,, I dunno if I am gonna do it or not. I am really worried about the thin carrier bearing I believe he is using on one side to move the carrier over. I am thinking that could be a weak link.
Did you build jack bolts into the cover like Carl suggested?
http://jantzengineering.com/kitsap-county-wa--jana-hygrades.htm
http://www.pirate4x4.com/forum/showthread.php?t=914583
here ya go for the big info.
http://www.pirate4x4.com/forum/showthread.php?t=914583
here ya go for the big info.
I saw this installed in Crawl magazine. I was wondering about doing this myself. I've already got D70 gears..
I had a Dana 70 HD rear axle I stole the ring and pinion out of for my front end. All low pinion Dana 70 gears are the same. The different load ratings come from different size bearings, housing castings and axle tube diameters.
Yes, if you are confident doing gear installs, this is just a couple extra hours.
Hopefully there is some video from last weekend coming.
I see you run 4.56's
any limit on the ratios that will fit the case ?????
Call or E-mail Carl, he knows all the specifics on what ratios will work with what carriers.
Are these the parts you recieved?
Which bearings are you swapping?
What is the large spacer for on the botom left?
I have been thinking about this swap for a couple months now,,, I dunno if I am gonna do it or not. I am really worried about the thin carrier bearing I believe he is using on one side to move the carrier over. I am thinking that could be a weak link.
Did you build jack bolts into the cover like Carl suggested?
That is the standard kit. I reused my Dana 60 carrier bearings and outer pinion bearing. A modified inner pinion bearing comes in the kit. The large spacer is the modified inner pinion bearing race. The modified carrier bearing race does not have alot of material removed from it. A fabricated diff cover with preload bolts in on my list of parts to buy, it seems like a never ending list.
Stomis
Professional Amateur
Wow talk about the dana 70 open knuckles customs being f'ing worthless now!
http://jantzengineering.com/kitsap-county-wa--jana-hygrades.htm
http://www.pirate4x4.com/forum/showthread.php?t=914583
here ya go for the big info.
I read those & he never gets real specific about the actual beefiness of his replacement parts. He just said they are tough enough. If he got specific I missed it anyhow. Thanks for the links though. I have read the pirate thread twice.
That is the standard kit. I reused my Dana 60 carrier bearings and outer pinion bearing. A modified inner pinion bearing comes in the kit. The large spacer is the modified inner pinion bearing race. The modified carrier bearing race does not have alot of material removed from it. A fabricated diff cover with preload bolts in on my list of parts to buy, it seems like a never ending list.
Thanks for the reply.
Currently the ring & pinion is gone in my K5. I have been considering this mod, but am still on the fence. I would like to see & hear some real world beating to see how the trick bearings hold up, before I jump on it. I know Carl claims he has been running it in his rig for quite some time, but I consider his opinion bias.
