FZJ80 tranny stopped hard-shifting but I don't know why!

[-Spike-]

Some bearing manufacturers state to NOT use it because the reduced friction of Moly can cause the rollers to slide instead of roll, thus causing a high wear situation.

This is the biggest bunch of BS ever. If a roller bearing doesn't have enough friction to roll, it doesn't have enough friction to wear. I've never seen any warning against using moly grease in a bearing outside of a forum. Moly is actually ideal for use in wheel bearings, other than the fact that it's very messy.

Edit to add that any grease that is NLGI grade 2 multipurpose or EP grease is suitable for wheel bearing use with disc brakes. Moly paste, which has a much higher concentration of moly, would not be recommended for wheel bearings

 

[Chachi254]

Yes, it's very possible the nuts came loose. If you or whomever followed the factory service manual, they would not be adjusted properly.

There is controversy on using Moly grease on roller bearings. Some bearing manufacturers state to NOT use it because the reduced friction of Moly can cause the rollers to slide instead of roll, thus causing a high wear situation. (Maybe check yours?)

The other side says they've run for thousands of miles with that grease in their bearings and have never had an issue and the grease manufacturers will state it's safe to use in roller bearings.

My own personal opinion is I run red n tacky 2 lithium based grease in the bearings and the moly in the knuckles because they have different wear characteristics and that's what the FSM recommends.

Will it kill it? Unlikely, but maybe you're the first one........

If there's a squeal, you definitely need to get in there sooner than later.

This is good information. I'll check all the above and get some of the red 2.

Is it bad to mix greases?

That slight amount of play in the 6-12 o'clock positions could easily be trunnion bearing play.

Trunnion bearings are the knuckle bearings, yeah?





Also, does anyone know if Harbor Freight sells 54mm sockets?

 

[-Spike-]

Trunnion bearings are the knuckle bearings, yeah?





Also, does anyone know if Harbor Freight sells 54mm sockets?

Yes. If you get the same movement at 3 and 9 o'clock, the play is in the wheel bearings.

You could easily search the Harbor Freight site, but I'll save you the trouble. No. NAPA carries them, or the fractional equivalent, and you may find them at other auto parts stores. If you can wait for shipping, several vendors on Mud carry them as well. Wit's End and Cruiser Outfitters come to mind, Marlin probably has them as well.

 

[Chachi254]

Yes.

You could easily search the Harbor Freight site, but I'll save you the trouble. No. NAPA carries them, or the fractional equivalent, and you may find them at other auto parts stores.

Okay cool, thanks for confirming. Just wanted to make sure I was fully understanding of your comment.


I did search the site and didn't return any results when I searched for "Hub Nut Socket" or "54mm Socket" and a few other keywords. But, Harbor Freight's website hasn't been updated since like friggin' 1999 when the site was created so I wasn't sure if I could trust the "No Results" response I got. Thanks for confirming with me on that as well.

 

[Tools R Us]

...
Also, does anyone know if Harbor Freight sells 54mm sockets?

Cruiser Outfitters down the page a bit to:

54mm Front DISC Hub Socket - $21.50
A must have in the garage or on the trail. 54mm drive hub socket is a mandatory tool while performing any work on the FRONT axle. Available in 3/8" drive.
(Fits 9/1975-2007 4x/55/6x/7x/8x/LX450/100/LX470 & 1979-85 Mini-Truck/4Runner)
Part# FA15007

 

[Chachi254]

No, you're not at risk of the wheel falling off. I have driven thousands of miles with loose wheels bearings.

HOWEVER, it wears the bearings more, creates poor wear patterns, and if you're driving FAST, you can over heat them and cause a failure which usually amounts to a race starting to spin on the spindle, wrecking the spindle and costing more money to repair.

So, Yes, you can drive on it.
I still recommend you get to it SOON.
Yes, you have time to order the parts and get them in and still drive it in the mean time.

You can also "rent" a torque wrench from your FLAPS (Friendly Local Auto Parts Store), but most do NOT carry the correct sized 54MM hub socket.

FYI, I use Lucas Red-N-Tacky two on the wheel bearings and Valvoline Palladium in the knuckles (birfs).

Got it done and it’s working great!

Thanks so much for all of the help and advice.