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I've used places like National Precision Bearing or the equivalent for my bearing needs. They had a warehouse counter store that was where I grew...

Who made the bearing? I would use a brand name like a National 307. I cannot imagine a company shipping a bearing with axial movement. Something...

Should I try a different bearing and see if that helps? I got this one from KW, is there a different supplier that might be better?

There shouldn't be any movement in the bearing. Any shim you can get in there that fits nicely on the shaft will work as long as it isn't hitting...

Another thought, the new bearing seems a bit loose. I could move the inner and outer races fore-aft in my hand. Could my issue be a defective...

The "end play" comes from the bearing moving back and forth. It sounds like you are not getting an accurate reading. It is important the rear bearing...

I got myself convinced to stop drooling over the m38a1 and work on getting my own jeep put together, haha! So I ordered shims from McMaster, the...

Here's a couple pics of the floor, after what I did with flossy last year I can really appreciate this. The odometer says it has 6,500 miles.

Original steel is near and dear to gm's heart!

That is one nice A1 there'56! I agree, it does look to be all original steel.

Wow that thing is in great shape! It looks like it is an all original survivor.

We have a new willys in the garage!! Not mine, it belongs to our local veterans post. We just hauled it home to do a little maintenance and store...

It will be hard to contain the 70 horsepower, haha! But, yeah, I will keep it easy. I wanted to do this for parades, and light trail riding, when I...

Thanks all. She is in her new garage in ID. Of course I saw a leak under the t-case. Luckily not the rear yoke, but I will have to see from where.

My cantankerous nature loves the Detroit green color!

Looking good 56'! Remember go easy in 2 wheel low. All the torque from the low low gearing will be going through the rear U-Joints and drive shafts....

While I am at a bit of a stand still on the t90, I started on the Dana 18. I'm not doing a rebuild right now, that's something I can easily do later...

So, Herm said I should probably shim it, he didn't give me a max tolerance though. I think I'll shoot for the 0.002-0.005 like Bm said.

Awesome!! Nothing better then the first drive out of the garage. It looks good!

It gives one a sense of accomplishment when you can drive out of the garage. It's the little wins that make a difference.

Now that is success! It looks ready to go now David.

Herm seems to be the only source for the "Overdrive" technical questions. There just isn't a lot of info available. Its a good thing Herm is around....

I've talked to Herm before. He is a good source of these questions. I liken him to the PNW version of Dr. Dana (aka bmorgil)

She fired right up and drove on out of the garage.

That is a good question for "Herm The Overdrive Guy". I would drop him an email or, see if you can call him. The specification for max end play as it...

Ok, thanks, I don't know why I was thinking it would be different. If you think it's worth tearing apart to tighten it up, I'll get some shims...

It should be a direct correlation. If you have .007" - .008", you are looking for a .005" shim.

Thank you, so the shims that were in it before that I removed, one is 0.015" the other is 0.025" thick. Am I right in thinking that if I add...

Unfortunately there are no specifications for the end play. Suffice it to say it cant be tight or too loose. I use .002" to .005" because that is...

Transfer case installed, no gear on the main shaft. The endplay is between 0.007-0.008" seems a little too much?