Dana 70 bearing shroud???? HELP!

[JLight]

Hey you diesel guru's! Was working on the ol' cummins today replacing a leaking axle seal and brake drum on the drivers side and noticed a neat shroud over the wheel bearing that catches the gear oil so It doesn't screw up the binders. I did the pass side and there was none in there. I called the dealer and they didn't have a clue what the **** i was talking about. Do any of ya had to replace this and where do i purchase one? This shroud goes in between the hub and brake drum. By the way i bought a new (USA MADE) drum from napa and it was 207. 00 and change. I know it was a lot of money but me and my truck do not like chinese food or parts! Thanks for your time and expertise GOD BLESS OUR MILITARY!

 

[Paychk]

Er... . what model is this truck? 250 or 350, nothing in your sig even hints at it

 

[dpuckett]

Rear drums are the same on the 3/4 HD (diesels) and 1 tons.



The slinger you are talking about is to keep the oil off the brake pads should you develop a leak. Some have them, some dont. I imagine they all did when new. They are a bit of a pain to get into the hub just right if you have to get new drums, so many people dont mess with it when they get drums redone. My truck has one, I think. I havent worried about it. I dont have too much trouble with seal leaks anymore, as I keep the fluid changed, and can now recognize a LSD and know how to handle that situation.



Daniel

 

[Paychk]

So all came with Dana 70's?

 

[1stgen4evr]

So all came with Dana 70's?

Till proven otherwise, I will take Daniels word. He has been right before. They are Dana 70s if they are full floating hub design. I don't think the width of the axle is the same on the 250 and 350. Different width at the backing plate.



Dodge uses a 9 1/4 chrysler axle on some of their 3500 vans now. It is eight lug but it isn't full floating. I have been investigating as to whether I can use one on my D250 and install a 2. 76 R&P from the earlier model of the 9 1/4 axles. That would give about the same final ratio as the OD on the later trannys. From an engineering stand point the smaller ring gear setup is ok since in the lower number ratios, load is shifted from the ring gear to the pinion. That is an around town use truck anyway so low speed torque isn't a factor.



As to the slinger or shield mentioned, they all have them new. The previous owner of my low miles 350 paid 1800 for a pair of new drums installed from the dealer. And I doubt they were bad. I think they were chasing the rwal light problem and mistakenly thought the pickup for the light was in the hubs. Some of the dealers don't even know how to read their own manuals.



1stgen4evr

James

 

[MMiller]

Like Daniel and James, all first gen diesels came with dana 70 rears. 3/4 and one ton. All first gen diesels came with dana 60 fronts if 4X4. Unless someone else proves me wrong, the only difference in a 250 and 350 is the size of the wheel studs, and the 2 more tires on a dually. NOW the GASSERS of the same vintage would come with dana44F/60R in the 3/4 tons, then the 60F/70R on the heavy duty 3/4 and one tons. I know its off topic.



I know the sheild you are talking about, thought it was a neat idea. I have no idea where to get one though. Need to go to the dodge dealer and make them let you look at the parts book. I usually find myself doing this with my old dodges anyways.



Michael

 

[dodgenstein]

Besides the bolt size difference and width differences, the 250s had a 32 spline axle vs 35 for the 350s. Also the 350 hub has a much larger inner wheel bearing.

 

[MMiller]

Are the axel shafts larger diameter with the more splines? I have never seen a break in parts. I know the 60 rears have a 31 spline 1. 25" axel and the 70 axle in my 250 is much larger, however I do not know the spline count. I assumed it would be a 35 spline 1. 5" shaft like the 60 fronts have. Since I added some gasser info, I know its not supposed to happen here, but dodgenstien are you comparing the 70 rears in diesels or the 60 rear in a gasser to a 70 rear in the diesel?



Michael

 

[dodgenstein]

I have both 3/4 and 1 tons. Both diesels. 3/4 ton has 1 3/8" 32 spline axles, 1 ton has 1 1/2" 35 spline axles.

 

[MMiller]

I never would have guessed there was a difference like that. Thanks for the info.



Michael

 

[dodgenstein]

I came upon this by accident myself. I bought a truck with a grenaded powerlock. I had a set of 30 spline side gears, too small. Had a set of 35 spline side gears too big! Had to order new "inner kit" with correct parts. Guess it is kind of a three bears thing.

 

[1stgen4evr]

order new "inner kit" with correct parts

Dodgenstein, did the inner parts fit in the carrier housing otherwise. I am sure I would have to mix and match some parts to do what I referred to on the chrysler 9 1/4. The chrysler has all the ear marks of being actually made by dana. The carrier appears to be the same as the dana. I didn't have the two apart side by side. Just wondering what you might add.



Thanks

James

 

[dodgenstein]

Inner parts kit from Dana contains everything (clutches, side gears, differential gears, pins) except the case. The actual parts are the same (as long as the spline count is the same) between a Dana60 and a Dana 70. In my case both rears use all the same bearings except the inner wheel bearings. I haven't seen a 9 1/4 with a powerlock all the ones I have come across have had a posi that looked more like an Auburn style.

 

[brkoyle]

The part is called an oil slinger. It was available from Mopar three years ago when I needed one, but I don't know if they still have them available. The biggest problem is that they will not fit on the aftermarket drums because the circumfrence of where the slinger seats is different.

 

[jlast]

dodge did not use 35 spline rear 70 axles in our trucks, they can be swapped in. shafts and spiders for an open carrier, 32 spline here.



dodgenstein pull your BOM off the axle.

 

[dodgenstein]

I have had my axles out of my rear end of my dually. Definately 35 spline.