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Old 09-06-2013, 05:40 PM   #401 (permalink)
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No, you can't do a Jana 65, due to the design of the housing vs ring & pinion placement.
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Old 09-07-2013, 08:32 AM   #402 (permalink)
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Thank you
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Old 09-07-2013, 09:44 AM   #403 (permalink)
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Not possible, even if you got the pinion set back far enough, it would be sticking out the housing 2" no chance for tail bearing or seal. Plus the hypoid offset it differient. One again these conversions are only possible when the hypoid distance is the same. the D60 has an 1 1/8" hypoind offset whereas the D50 has a 1.5" hypoid offset.

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Old 12-09-2015, 11:44 AM   #404 (permalink)
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Old 12-09-2015, 12:15 PM   #405 (permalink)
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So what is the skinny on using Dana 80 parts in a Dana 60/70?
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Old 12-09-2015, 12:25 PM   #406 (permalink)
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So what is the skinny on using Dana 80 parts in a Dana 60/70?
Page 1, post 1, link for the Jana 87 here:

https://www.pirate4x4.com/forum/axles...your-70-a.html
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Old 12-09-2015, 12:51 PM   #407 (permalink)
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Thanks Carl!
You are very welcome!
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Old 12-09-2015, 02:48 PM   #408 (permalink)
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Page 1, post 1, link for the Jana 87 here:

https://www.pirate4x4.com/forum/axles...your-70-a.html
That isn't the same thing I don't think.

Jantz now seems to be using Dana 80 carriers with Dana 70 gears in Dana 60 housings?
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Old 12-09-2015, 03:11 PM   #409 (permalink)
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I did this.

Chevy LP 60 housing.

I ran a 80 Spool w/ 70 gears, and 37spline 80 Detroit w/ 70 gears.

80 spool because they do not make a 70 spool. 80 Detroit because I got it for cheap. And converting the 80 to 70 is easier that 60 to 70. 80/70 share bolt circle and register size, only difference is 80 used bigger bolts (sleeves are needed in the bolt holes). 60/70 different register and different bolt circle. Register spacer needed and new bolt hole need to be drilled.
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Old 12-09-2015, 03:34 PM   #410 (permalink)
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I did this.

Chevy LP 60 housing.

I ran a 80 Spool w/ 70 gears, and 37spline 80 Detroit w/ 70 gears.

80 spool because they do not make a 70 spool. 80 Detroit because I got it for cheap. And converting the 80 to 70 is easier that 60 to 70. 80/70 share bolt circle and register size, only difference is 80 used bigger bolts (sleeves are needed in the bolt holes). 60/70 different register and different bolt circle. Register spacer needed and new bolt hole need to be drilled.
What mods did you have to do to the Dana 80 carrier to get it to fit in the Dana 60 bearings/housing?
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Old 12-09-2015, 06:51 PM   #411 (permalink)
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What mods did you have to do to the Dana 80 carrier to get it to fit in the Dana 60 bearings/housing?
Bearing ID is the same. Just needs spacer for the bearings and sleeves for the bolts. Carl Jantz can knock that shit out easy and fast. And the purchase power he has though Yukon, he can get the spool and do the mods for way cheaper than anyone else....
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Old 12-09-2015, 08:19 PM   #412 (permalink)
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Bearing ID is the same. Just needs spacer for the bearings and sleeves for the bolts. Carl Jantz can knock that shit out easy and fast. And the purchase power he has though Yukon, he can get the spool and do the mods for way cheaper than anyone else....
Thanks! Would this with other carriers like a Detroit or ARB? Would there be any advantage over the 'native' Dana 70 carriers? 37 spline is a little more common in Dana 80 stuff. Just thinking out loud.
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Old 12-09-2015, 08:26 PM   #413 (permalink)
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Thanks! Would this with other carriers like a Detroit or ARB? Would there be any advantage over the 'native' Dana 70 carriers? 37 spline is a little more common in Dana 80 stuff. Just thinking out loud.
Ya should work all around.

What ever you get for less $$$$ in my opinion. The 80 Detroit is bigger that the other Detroits. Bigger than the 60/70/14b and 2.5 Rock.....The 37 as far as I know was only used in the 80. I like it, I run 37spline outer and 30 spline(14b) inner (Front and rear). As they're about the same size.
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Old 12-09-2015, 09:16 PM   #414 (permalink)
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FYI

D70 spools in the classifieds right meow. Get 'em while they last.
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Old 12-11-2015, 12:21 AM   #415 (permalink)
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Originally Posted by Mieser View Post
Thanks! Would this with other carriers like a Detroit or ARB? Would there be any advantage over the 'native' Dana 70 carriers? 37 spline is a little more common in Dana 80 stuff. Just thinking out loud.
As far as the ARB, they are listing the same part numbers for the 70 and the 80, other than you have to be carreful as the carrier breaks are different between the two, so what is low speed in a 70 could be a high speed in an 80 or vice versa, dont zackly remember wich way it goes , just that it goes.
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Old 01-18-2017, 08:19 PM   #416 (permalink)
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Sorry this all is taking so long, been really sick the last few days. But made myself go out into the shop and take a look at a budget conversion. So the D50 carrier has room for the 1.5" D60 axle but the D50 side gears do not, as can be seen on the left with 35 spline axle sitting on top of the 30 spline D50 side gear. Yes it could be done but you would have a seriously thin section around the axle at the highest stress point. (not to mention the price of EDM'ing the hard gears which would be impossible to broach with out softening and re-heatreating again). So with all the parts on the bench It looked to me that the Dana 60 side gears, and the Dana 50 side gears were machined with the same gear pitch even though the gears are slightly different in diameter and thickness. (middle of pic) Also good old Dana used the same size diameter cross shaft in the carriers. So being "having a Lathe means never having to say your sorry" I machined the parts to fit together. Then even when they turned freely in the carrier I was worried that they might not line up properly, so a little gear marking compound (2nd pic) shows that the gears are in mesh perfectly spreading the load out evenly on the teeth. Also I see no reason this couldn't be set up to work in the Jana 54. I'm guessing total Machine time would be about 1.5 hours, on Clean Bare Parts.
Just to drag this up from the dead, sure an open front is nice but I was thinking about the various ways one could attempt to copy this with a D60 lunch-box locker or LS

Is there any reason you couldn't turn down a D60 carrier to hold D50 or JK44 gears? Then you could use 35spl D60 shafts and a lunch-box locker or LS in a D50 front or D44 rear. I'd just measure myself but I don't have a D60 carrier sitting around.

I know this sort of goes counter to the theme of "stuff some bigger gears into a housing that they weren't meant for so that they're not the weak link"
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Old 01-21-2017, 04:44 PM   #417 (permalink)
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Just to drag this up from the dead, sure an open front is nice but I was thinking about the various ways one could attempt to copy this with a D60 lunch-box locker or LS

Is there any reason you couldn't turn down a D60 carrier to hold D50 or JK44 gears? Then you could use 35spl D60 shafts and a lunch-box locker or LS in a D50 front or D44 rear. I'd just measure myself but I don't have a D60 carrier sitting around.

I know this sort of goes counter to the theme of "stuff some bigger gears into a housing that they weren't meant for so that they're not the weak link"
to turn down the 60, would not work, as you narrowed it there would not be enough material left between the inside of the carrier bearings and the outside of the side gears, to hold any reasonable strength.
Best way is start with a D50 carrier, and modify the Lunch box locker and D50 carrier similarly to how I made the 60 side gears fit in the 50 carrier.
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Old 01-21-2017, 07:50 PM   #418 (permalink)
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to turn down the 60, would not work, as you narrowed it there would not be enough material left between the inside of the carrier bearings and the outside of the side gears, to hold any reasonable strength.
So if I'm reading this correctly the carrier on the 60 is basically too wide to fit in a 44 or 50 housing

Best way is start with a D50 carrier, and modify the Lunch box locker and D50 carrier similarly to how I made the 60 side gears fit in the 50 carrier.[/QUOTE]

I thought about the removing material from the side gear portion of a lunchbox locker in order to make them fit in the 50 carrier and be short enough to fit the other stuff in between.

I figured if it were possible to use a 60 carrier it would be a lot easier to use a modified carrier and off the shelf everything else than the other way around. What about a 70 carrier? I know they're narrower (but I expect some other feature to be a problem)
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Old 01-23-2017, 03:40 AM   #419 (permalink)
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if a 70 carrier is narrower than a 60 is because the same casting is used for a 70U or a 70HD and they machine about .100" more off each side to make room for the wider HD bearings. The spider cross is immensely bigger. as are the spider gears, let alone the ring gear diameter differences. Just not going to work. It will take less time to modify the 50 and locker than any other combination. Send me the parts, Ill do it for $300, as a R&D project. and for another $100 I'll supply the 50 carrier.
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Old 01-23-2017, 07:08 AM   #420 (permalink)
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Just not going to work. It will take less time to modify the 50 and locker than any other combination. Send me the parts, Ill do it for $300, as a R&D project. and for another $100 I'll supply the 50 carrier.
I'm nowhere near that level of performance yet. When I'm snapping TTB axles regularly I'll revisit this.
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