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info on dana 70..

supersize75k5

supersize75k5

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I decided to fine a dually dana 70 to use with my dually dana 60 front and h1 stock beadlocks.


any years specific I am looking for?

any other heads up?

thanks, shawn
 
Before you buy anything,pull a shaft and count the splines.If its not 1.5 35 spline you dont want it.One model is just as good as another.Parts are available for all models and pinion offsets.Mine didnt even have a BOM# and it was easy to figure out what I needed :D
 
Emmettology101 I think is probably the resident expert on the subject. He has a post going back something like "how to run hmmwv on your blazer" that has alot of useful information.

I'm making the same swap. My 70HD came out of a 91 crew cab. I believe you can find them in 99% of the 1 ton CC duallys going back at least to the early 80's.

The only heads up I can give you are these tips:

Make sure it's a 70HD. There are 70U, 70HD3, 70, etc. The 70HD is the one you want. It's wide enough and has the big bearings.

Not so simple as a 14Bolt. ex: disc brake conversion. no bolt on kits. All weld on / some fab needed.

Naturally, have to move spring perch. No biggie but finding perches are a pain due to 4" axle tube. Kert will do mine as soon as I'm ready for them.

Bring a friend or three to move it.

In stock form, it's 2 or 3" skinnier than a DRW D60F. If you swap for SRW 14bolt hubs (direct swap) it will bring the WMS out to about .75" wider than the DRW D60F. If you go this route, you must go discs too.

Did I mention it's heavy?

I'm tearing down my D60 first before I dive into the 70 but I understand it's pretty much the same as a 14 bolt as far as hubs, deals etc go. Gear setup is very different from what I understand.

One thing I don't know is whether or not a 70 is oil bath lube or grease. The topic came up in Manny's thread and it made me wonder about the 70. Dana website probably has manual, haven't checked yet.

All I can think of now.
Chris
 
My 70 is out of an early 70 Dodge W300 and is the perfect width.And I know a vendor that is going to start selling a bolt on disc brake kit so that will make things a sit easier :D And the wheel bearings are lubed by the axle lube like a 14 bolt .
 
FRIZZLEFRY said:
My 70 is out of an early 70 Dodge W300 and is the perfect width.And I know a vendor that is going to start selling a bolt on disc brake kit so that will make things a sit easier :D And the wheel bearings are lubed by the axle lube like a 14 bolt .
Click to expand...

When this bolt on kit becomes available, be sure they sign up here or at least give them a plug. I would definately be interested in that.
 
SkysTheLimit said:
When this bolt on kit becomes available, be sure they sign up here or at least give them a plug. I would definately be interested in that.
Click to expand...

He is a vendor here,just dont want to say who til he gets something together.I have seen the basic kit and he is close :D And I will plug the hell out of it when he comes through:D
 
SkysTheLimit said:
I wouldn't mind being a genuea pig... :D:D
Click to expand...


mongolian_gerbil.jpg


:haha: this guy said the same thing:haha:
 
Last edited:
The Dana 70B from a 1-ton DRW cutaway van is the same width. 3.5" tubes though.
 
SkysTheLimit said:
Emmettology101 I think is probably the resident expert on the subject. He has a post going back something like "how to run hmmwv on your blazer" that has alot of useful information.

I'm making the same swap. My 70HD came out of a 91 crew cab. I believe you can find them in 99% of the 1 ton CC duallys going back at least to the early 80's.

The only heads up I can give you are these tips:

Make sure it's a 70HD. There are 70U, 70HD3, 70, etc. The 70HD is the one you want. It's wide enough and has the big bearings.

Not so simple as a 14Bolt. ex: disc brake conversion. no bolt on kits. All weld on / some fab needed.

Naturally, have to move spring perch. No biggie but finding perches are a pain due to 4" axle tube. Kert will do mine as soon as I'm ready for them.

Bring a friend or three to move it.

In stock form, it's 2 or 3" skinnier than a DRW D60F. If you swap for SRW 14bolt hubs (direct swap) it will bring the WMS out to about .75" wider than the DRW D60F. If you go this route, you must go discs too.

Did I mention it's heavy?

I'm tearing down my D60 first before I dive into the 70 but I understand it's pretty much the same as a 14 bolt as far as hubs, deals etc go. Gear setup is very different from what I understand.

One thing I don't know is whether or not a 70 is oil bath lube or grease. The topic came up in Manny's thread and it made me wonder about the 70. Dana website probably has manual, haven't checked yet.

All I can think of now.
Chris
Click to expand...


thank you very much guys, I am looking at one under an early 80's crew cab 2wd.

plan to weld on disk brake brackets, spool the axel and re-gear it.
 
The housing is nodular iron which is stronger, the tubes are 4" which is bigger and deeper gear choice. Locker and Limited slip selection is wider as well. It's rated to take a little more torque than the 14 bolt but I don't think it's really a whole lot.

Plus, I'm not certain if a 14bolt is available in as wide a width as a 70HD.
 
is the 70hd what chevy drw came with does the center section make that big of strength difference for such big pumkins aren't the axles about the same weight rating the hd is probably more but the 14-bolt had a gaw of 7500lbs
 
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