sreeb

I'm installing 4.56.

What does one typically do when confronted with the typ interference?

Right now I don't have any lock tight on the RG bolts. I don't see any sign of it on the bolts I pulled. The FSM doesn't say to use any.

It wouldn't be hard to re-install the bolts with lock tight now though.

Pulling the pinion bearing looks like a tough problem with any tool since there isn't much clearance to get under the race.

The HF tool is probably viable if your goal is to get the bearing off so you can reuse the pinion. If you want to reuse the bearing itself, no way.

In retrospect, the best way to get a setup bearing is to buy one. $13 at my local autoparts store.

RWKHausSupply

You have to clearance the pinion head. Flap wheel on a 4.5 angle grinder works well. Basically just the very tips of the gear teeth.


I believe the FSM for the 8.25 is assuming OE bolts that have the dry LT applied to the threads.

A diff bearing puller removes the bearing everytime with one issue and perfectly good for reinstall everytime. It grabs the cage, but applies preload to the race thru the rollers. Hard to explain, have to have one or such to follow I think.

sreeb

I suspected that would be the answer.

They do say not to reuse them so that is possible.

I'll reinstall them with thread lock.

I think I see. Given the hint to grab the rollers, I could probably build one. Interesting lathe project for a rainy day.

Jake.

So you are running no shims on the pinion and still having interference with the carrier? When I install a set of gears I buy an extra brand new bearing for the pinion to use as a setup and use the existing race in the carrier as long as it's not pitted/screwed up.

sreeb

Eaton tech support was easy to get on the phone and seemed genuinely surprised by this problem.

My next step is to review everything I have done for errors and then measure how much the factory pinion intrudes into the housing compared to the new pinion.

94XjSport94

I might still have my set up bearings if interested.

RWKHausSupply

Why not just shim under the race? I dont know what your master kit came with but get some D44JK or F8.8 pinion depth shims and wha laa..

Jake.

If he is having clearance issues that tells me the pinion is too deep

94XjSport94

Don't know how trashed his bearings are.

X2 to above, what's a patten look like?

sreeb

The pinion is too deep for the Detroit case which is larger than the stock carrier.

I initially installed it with the original shim (0.025").

I don't know how it matches with the ring since I can't rotate the ring with everything tightened down.

I suspect that the pinion gear is a little taller than OEM gear but I really need to measure to move beyond speculation at this point.

Marks2000XJ

Is this the bearing separator you used?

http://www.harborfreight.com/bearing...set-93980.html

sreeb

No that one is too small. I used a #3979 which I don't really recommend for the application. I also used a 20 ton press to go with it.

sreeb

I now see that I ended up with a "standard" rather than a "master" kit which basically means I saved $10 but didn't get shims, which I now need to buy) or new ring bolts.

sreeb

After measuring, I see that new pinion is in fact, a little under 1 mm shorter.

I assume this means that I didn't really get the cage to hold the cones in place correctly.

I think I'm basically on hold until I get an new setup bearing and a shim pack.

Plus I now know I'm going to have the same parts shortage with my d30.

94XjSport94

Lemme know if ya want these.