castle nut size and threads

[Mator]

While repackaging wheel bearings I noticed the threads on the castle nut are shot and I need to replace it. The local parts stores don't carry them and they don't the size or thread size. Can any one help. I want to get a die to chase the threads and a source for getting a new one. Thanks

[Mator]

Sorry it was supposed to say re-packing.

[airdale94]

It should be pretty easy to get a new one. Dorman probably has a replacement. I would try RockAuto.com

[kcsa75]

I would think any front-end shop would have an old coffee can full of them.

[mgchevyparts]

1/2 ton? 3/4"-20
Very common Chevy castle nut. Not so common thread, you won't find a die unless you get the spindle rethreading set avail. I don't remember if I bought my die set at Harbor Freight or maybe online, it's a set of dies for all the spindle threads normally used.
Pretty much all Chevy cars and light trucks use the 3/4"-20 nuts, pre-metric.
Dorman 615-065

[Mator]

Thanks guys,
Thats pretty much what I thought. I found a castle nut but will have to order a die. The threads are pretty goobered up and I can get the new nut back on.

[Fitz]

Originally Posted by Mator

Thanks guys,
Thats pretty much what I thought. I found a castle nut but will have to order a die. The threads are pretty goobered up and I can get the new nut back on.

These nuts should be grade 8 hardware and the stuff you get from most parts stores today are grade 3 and worse, made in china.

I get mine here: http://www.mcmaster.com/#slotted-nuts/=s9h50p

[tony58]

Originally Posted by Fitz

These nuts should be grade 8 hardware and the stuff you get from most parts stores today are grade 3 and worse, made in china.

I get mine here: http://www.mcmaster.com/#slotted-nuts/=s9h50p

You won't find a 3/4-20 castle nut any where but from a auto parts store. Dorman are correct castle nuts.

[Mator]

I forgot to check the grade on the one I found. It was in the self help section at the part store. I had to order a die though.

[tony58]

Originally Posted by Mator

I forgot to check the grade on the one I found. It was in the self help section at the part store. I had to order a die though.

Automotive application is the only available, the one you got is good to go. 3/4-20 does not come in different grades.

[Mator]

Thanks guys. Sometimes the smallest jobs like repacking wheel bearings can go south fast if you dont have the information or the right tools. My new dies will be here tommorow to clean and chase the threads. Thats what makes this site so great. People helping people. Thanks again.