Dana 60 Outer Bearing Races "Cracked"

[451Mopar]

Older style green bearings that don't allow for flexing like the newer versions with the snap ring.
Biggest install problem I have seen is when the diff pin is retained, the axles will be just slightly too long.
You can tighten the bearings down, but the rollers will be loaded towards the outside of the bearing(s).
With the green bearings, usually remove the diff din, or grind a but off the end of the axle shaft to they don't but up on the pin.

 

[1KoolBee]

Solution : BCA or Timken A7RK and A7LK. In other words, use the factory style bearings!

 

[RJRENTON]

Older style green bearings that don't allow for flexing like the newer versions with the snap ring.
Biggest install problem I have seen is when the diff pin is retained, the axles will be just slightly too long.
You can tighten the bearings down, but the rollers will be loaded towards the outside of the bearing(s).
With the green bearings, usually remove the diff din, or grind a but off the end of the axle shaft to they don't but up on the pin.

The solution is get rid of the Green bearing setup and reinstall the Timken Tapered roller bearings and the adjustment hardware as Mopar originally installed.
BOB RENTON

 

[khryslerkid]

GBS...Green Bearing Syndrome!

 

[Bird 426]

I have green snap ring bearings in all 3 cars, never removed the buttons. One of the cars is a driver. No failures yet, 3 years. Not saying not to go back to tapered factory bearings, but I have not had a green failure.

 

[Cranky]

I have green snap ring bearings in all 3 cars, never removed the buttons. One of the cars is a driver. No failures yet, 3 years. Not saying not to go back to tapered factory bearings, but I have not had a green failure.

My old race car in the early/mid 80's had the Green bearings but it's been too long since I've been inside of that old 60 to remember what they looked like when I took it apart. The car had a lot of passes on it though....high 10's at 126. But you are one of the lucky ones that got by with leaving the thrust pin in the diff.....

 

[RJRENTON]

I have green snap ring bearings in all 3 cars, never removed the buttons. One of the cars is a driver. No failures yet, 3 years. Not saying not to go back to tapered factory bearings, but I have not had a green failure.

The EXTERNAL SNAP RING on the bearing's outer race is to locate the bearing in the housing or prevent movement (anchors it axially) has NOTHING TO DO WITH THE TOTAL AXIAL THRUST LOAD THE BEARING MUST ABSORB DURING OPERATION. The axial and radial loads the bearing tolerates sre by design. Look ip the bearing number for load and rotational maximums.
BOB RENTON

 

[khryslerkid]

The EXTERNAL SNAP RING on the bearing's outer race is to locate the bearing in the housing or prevent movement (anchors it axially) has NOTHING TO DO WITH THE TOTAL AXIAL THRUST LOAD THE BEARING MUST ABSORB DURING OPERATION. The axial and radial loads the bearing tolerates sre by design. Look ip the bearing number for load and rotational maximums.
BOB RENTON

We get it Bob, you don't like green bearings.

 

[RemCharger]

May I suggest that anyone actually interested in load carrying capabilities go ahead and do their own research.
It appears no one else gives a ****.

 

[Bird 426]

Guess that I have been lucky 3 times then. The Dana 60 Hemi car has been on the road for at least 10 years before I bought it. Same thing with my '69. The driver, I don't know, but I have driven it alot in the 2 years that I have owned it. So maybe something has changed. You know that technically, a Bumble Bee isn't supposed to be able to fly.

 

[POMONAMISSEL]

well i was told when using green sealed bearings you must remove the inner axle seals , so gear lube can get to those type bearings to cool them off . and yes standard tapper bearings are heavily greased and re-greased over time for their cooling .

 

[RJRENTON]

May I suggest that anyone actually interested in load carrying capabilities go ahead and do their own research.
It appears no one else gives a ****.

Probably because the majority of the owners do not understand the fundamentals power transmission design and differences between the different types of bearings, their capabilities and the correct application for each type, but put all their faith in some uneducated "buddy's" assumption based on 5th hand information or hearsay........although these "don't give a **** individuals" agonize as to what oil to use or what wax is best to use because that's only what they understand ........ and that's my opinion of course......
BOB RENTON

 

[khryslerkid]

well i was told when using green sealed bearings you must remove the inner axle seals , so gear lube can get to those type bearings to cool them off . and yes standard tapper bearings are heavily greased and re-greased over time for their cooling .

You still use the inner seals with Green bearings.

 

[RJRENTON]

well i was told when using green sealed bearings you must remove the inner axle seals , so gear lube can get to those type bearings to cool them off . and yes standard tapper bearings are heavily greased and re-greased over time for their cooling .

The Timken Tapered Roller Bearings are grease lubricated and must be periodically re greased...(40k - 50k miles or per FSM recommendations). The inner seals PREVENT the axle lubricant (gear oil) from contaminating the grease lubricated axle bearings. These inner seals are USUALLY replaced when the axle shafts are pulled to re-grease the tapered axle bearings. The grease performs the primary lubrication function not cooling function.
BOB RENTON

 

[Vitamin_A12]

The Timken Tapered Roller Bearings are grease lubricated and must be periodically re greased...(40k - 50k miles or per FSM recommendations). The inner seals PREVENT the axle lubricant (gear oil) from contaminating the grease lubricated axle bearings. These inner seals are USUALLY replaced when the axle shafts are pulled to re-grease the tapered axle bearings. The grease performs the primary lubrication function not cooling function.
BOB RENTON

True story...

 

[oldkimmer]

General Motors used the green roller type bearings till 1964. Ford continued on till the early 80s. They used the diff pin for the axles to but up against with about .010 play. They made millions upon millions of miles with them. Kim

 

[RJRENTON]

General Motors used the green roller type bearings till 1964. Ford continued on till the early 80s. They used the diff pin for the axles to but up against with about .010 play. They made millions upon millions of miles with them. Kim

"Green type roller bearings" means nothing.....the current style of Green bearings are SINGLE ROW, SEALED BALL BEARINGS.....the "Green type roller bearings" are a TOTALLY different design.....roller bearings are not ball bearings. Do you know the bearing manufacturer's part number of the bearing you refer to? What GM used vs what Ford used are different as well. All bearings are different per application. In the current venu, Green bearings are used as outboard axle bearings not carrier support or pinion support bearings.....one should be specific not in generalities to accurately compare .....like apples and oranges.......just my opinion of course...
BOB RENTON

 

[oldkimmer]

Outer axle bearings and no I don’t know the part #s as I didn’t look them up. They may have not been the Green type roller bearings but they were still a ball bearing on the Fords. I never mentioned carrier support or pinion support cause that’s not what this thread is about.

 

[RemCharger]

An early 90s 4 runner also uses a ball bearing axle shaft bearing. Good for about 200k with heavy use.

 

[oldkimmer]

An early 90s 4 runner also uses a ball bearing axle shaft bearing. Good for about 200k with heavy use.

I not sure when they stopped but I believe it was the 9 inch was dropped in favor of the 8.8. But I could be wrong there as they may have used them along with the 8.8 for a while.