2nd Gen Non-Engine/Transmission Anyone had DANA 70 problems AFTER installing a Mag-Hytec?

[Bug Out]

I'm on a research role again.



Has anyone had gear /bearing problems with the DANA 70 after installing the Mag-Hytec cover and the gears being in a constant oil bath?



I have read about bearings going out etc in the 70, but i can't find any info on whether or not the rear was in a full oil bath.



Any input would be appreciated.



Second question:



Does anyone know where to get LE607 oil cheaper then $9. 00 a quart?



I'll go synth. before I buy 607 @ that price again.



Thanks, ed

 

[BarryG]

For me personally I have had my Mag Hytec rear cover on for well over 2 years and 70k with no problems. Put one on the front about 35k or so ago when they first came out and it also has had no problems. Cant help with the LE607.

 

[dresslered]

Curious as to why you would think a Mag-Hytec would cause problems with your rear end gears/bearings? Also, I think that the LE607 is pretty good stuff.

 

[OL RATLR]

Dana 70

No problems with Mag Hytec cover. What's your problem?

 

[Joseph Donnelly]

I'm using LE 607 in the diffs. I paid more for it than many synthetics cost and will use it again. Cheap insurance.

 

[Bug Out]

Mag-Hytec

I have NEVER had a 'problem" with any of the 3 Hytec's I have, nor with the LE607.



I was merely inquiring with folks if they ever had bearing/gears in the DANA 70 go out with a Hytec cover on, which as far as i know creates a oil bath for bearings and gears.



I have read numerous posts about rear bearing' s going out in the 70 and wanted to know if it was possibly stock oil level when it failed or extra oil with the hytec cover.

 

[dresslered]

The "oil bath" is used with the OEM cover as well. In fact, Mag-Hytec even specifies how to calibrate the dipstick for the correct oil level should your vehicle have been modified or "lifted" in such a way that the axle was slightly rotated. The Hytec cover should not alter the depth in any way, just the capacity.

 

[hammersley]

OK guys - laugh at this - but what

the heck is LE607????

 

[Bug Out]

LE 607

People refer to "Lubrication Engineers" oil brand as "LE". There out of fort Worth, Texas.



607 is the particular oil, 90 wt they carry.



Thats LE 607. Its said to be an excellent gear oil.

 

[scramblin]

Re: Mag-Hytec

Originally posted by Bug Out

I have NEVER had a 'problem" with any of the 3 Hytec's I have, nor with the LE607.



I was merely inquiring with folks if they ever had bearing/gears in the DANA 70 go out with a Hytec cover on, which as far as i know creates a oil bath for bearings and gears.



I have read numerous posts about rear bearing' s going out in the 70 and wanted to know if it was possibly stock oil level when it failed or extra oil with the hytec cover.

I had a 70 that failed. I was told by my axle guy, that the problem was the side load the pinion gear creates trying to deflect the ring gear while under acceleration or load. Apparently the carrier bearing can't handle the pressure. He doesn't think lubrication is the main issue. The raise of the bearing fatigues over time from the pressure.

 

[RMHanes]

Just purchased a Mag-Hytec cover and plan on installing it within the next few weeks. Is there anything special to look out for is it just a remove and install type of operation? Is there any other gear oil that is better to install than LE605? Probably open a whole can of worms with that question!

 

[LLiddell]

Just read the instructions and watch for the o-ring crossing any of the stamped numbers on the face of the Dana 70. The grease test will tell you if you have to fill and file.

 

[RMHanes]

LLiddell,

Thanks for the information. Should only take a few hours then and the hardest part would be to remove the rtv from the old cover and axle. Have been thinking of this "grease test" but just coming up empty on this. Just what is this grease test? How is it done and what will it "pass or fail"? Can gather that there could be some "stamping" that will not allow a good seal with the new cover so it is related to this somehow? Really looking forward to getting this cover on and having the extra fluid.

 

[LLiddell]

I'm sorry I didn't go a little further. The reason I didn't is because I think it's in the directions that came with the cover. Anyway, you put a thin layer of grease on the face of the diff and then put your cover on gently and align it with two bolts. Remove the cover and you will see if the o-ring crosses any of the stamped numbers. If it does, you'll have to clean, fill and file flat the area where the o-ring crosses. My Dana 70 took 5 qts of LE 607 and two small bottles of modifier. It's easy and you'll love it.

 

[RowJ]

Bug Out

L. E. is good Gear Lube. L. E. is one of several companys in "specialty lubrication" industry. They all make higher quality lubricants and charge what they have to to make a profit. Some charge more than others but all are a big cut above National Brands (Shell, Texaco, etc. ) L. E. 's Gear Lube is not synthetic and therefore must be changed more often, but it is excellent. The price you mention is not outragious for what you will get. However, IMHO I suggest you consider a full synthetic (from a higher quality company) for that added protection under extreme conditions (both heat & cold). As said above - it's cheap insurance.